Home / 30,757.28-42,447.66-17,331.18

Finding the Fourth Proportional to 30,757.28, 42,447.66 and 17,331.18

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Solution

The fourth proportional to 30,757.28, 42,447.66 and 17,331.18 is: 23,918.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,757.28 : 42,447.66 = 17,331.18 : x
  2. Step 2: Convert to fraction form
    30,757.28/42,447.66 = 17,331.18/x
  3. Step 3: Cross multiply
    30,757.28x = 42,447.66 × 17,331.18
  4. Step 4: Simplify right side
    30,757.28x = 735,668,036.04
  5. Step 5: Solve for x
    x = 735,668,036.04/30,757.28
  6. Step 6: Final answer
    x = 23,918.50

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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.