Home / 30,767.20-42,458.90-17,338.66

Finding the Fourth Proportional to 30,767.20, 42,458.90 and 17,338.66

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Solution

The fourth proportional to 30,767.20, 42,458.90 and 17,338.66 is: 23,927.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,767.20 : 42,458.90 = 17,338.66 : x
  2. Step 2: Convert to fraction form
    30,767.20/42,458.90 = 17,338.66/x
  3. Step 3: Cross multiply
    30,767.20x = 42,458.90 × 17,338.66
  4. Step 4: Simplify right side
    30,767.20x = 736,180,431.07
  5. Step 5: Solve for x
    x = 736,180,431.07/30,767.20
  6. Step 6: Final answer
    x = 23,927.44

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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.