Home / 30,535.68-42,140.45-17,107.05

Finding the Fourth Proportional to 30,535.68, 42,140.45 and 17,107.05

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Solution

The fourth proportional to 30,535.68, 42,140.45 and 17,107.05 is: 23,608.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,535.68 : 42,140.45 = 17,107.05 : x
  2. Step 2: Convert to fraction form
    30,535.68/42,140.45 = 17,107.05/x
  3. Step 3: Cross multiply
    30,535.68x = 42,140.45 × 17,107.05
  4. Step 4: Simplify right side
    30,535.68x = 720,898,748.93
  5. Step 5: Solve for x
    x = 720,898,748.93/30,535.68
  6. Step 6: Final answer
    x = 23,608.40

Related Problems

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Half scale
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Double scale
Find fourth proportional to 30,536.68, 42,141.83 and 17,108.05
Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.