Home / 30,535.83-42,139.44-17,107.08

Finding the Fourth Proportional to 30,535.83, 42,139.44 and 17,107.08

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Solution

The fourth proportional to 30,535.83, 42,139.44 and 17,107.08 is: 23,607.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,535.83 : 42,139.44 = 17,107.08 : x
  2. Step 2: Convert to fraction form
    30,535.83/42,139.44 = 17,107.08/x
  3. Step 3: Cross multiply
    30,535.83x = 42,139.44 × 17,107.08
  4. Step 4: Simplify right side
    30,535.83x = 720,882,771.24
  5. Step 5: Solve for x
    x = 720,882,771.24/30,535.83
  6. Step 6: Final answer
    x = 23,607.77

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Half scale
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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.