Home / 39,721.28-59,553.05-18,650.47

Finding the Fourth Proportional to 39,721.28, 59,553.05 and 18,650.47

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Solution

The fourth proportional to 39,721.28, 59,553.05 and 18,650.47 is: 27,962.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,721.28 : 59,553.05 = 18,650.47 : x
  2. Step 2: Convert to fraction form
    39,721.28/59,553.05 = 18,650.47/x
  3. Step 3: Cross multiply
    39,721.28x = 59,553.05 × 18,650.47
  4. Step 4: Simplify right side
    39,721.28x = 1,110,692,294.41
  5. Step 5: Solve for x
    x = 1,110,692,294.41/39,721.28
  6. Step 6: Final answer
    x = 27,962.15

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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.