Home / 42,542.70-63,809.20-11,380.38

Finding the Fourth Proportional to 42,542.70, 63,809.20 and 11,380.38

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Solution

The fourth proportional to 42,542.70, 63,809.20 and 11,380.38 is: 17,069.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,542.70 : 63,809.20 = 11,380.38 : x
  2. Step 2: Convert to fraction form
    42,542.70/63,809.20 = 11,380.38/x
  3. Step 3: Cross multiply
    42,542.70x = 63,809.20 × 11,380.38
  4. Step 4: Simplify right side
    42,542.70x = 726,172,943.50
  5. Step 5: Solve for x
    x = 726,172,943.50/42,542.70
  6. Step 6: Final answer
    x = 17,069.27

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.