Home / 39,721.61-59,582.38-10,139.45

Finding the Fourth Proportional to 39,721.61, 59,582.38 and 10,139.45

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Solution

The fourth proportional to 39,721.61, 59,582.38 and 10,139.45 is: 15,209.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,721.61 : 59,582.38 = 10,139.45 : x
  2. Step 2: Convert to fraction form
    39,721.61/59,582.38 = 10,139.45/x
  3. Step 3: Cross multiply
    39,721.61x = 59,582.38 × 10,139.45
  4. Step 4: Simplify right side
    39,721.61x = 604,132,562.89
  5. Step 5: Solve for x
    x = 604,132,562.89/39,721.61
  6. Step 6: Final answer
    x = 15,209.17

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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.