Home / 28,781.95-39,721.13-16,035.97

Finding the Fourth Proportional to 28,781.95, 39,721.13 and 16,035.97

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Solution

The fourth proportional to 28,781.95, 39,721.13 and 16,035.97 is: 22,130.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,781.95 : 39,721.13 = 16,035.97 : x
  2. Step 2: Convert to fraction form
    28,781.95/39,721.13 = 16,035.97/x
  3. Step 3: Cross multiply
    28,781.95x = 39,721.13 × 16,035.97
  4. Step 4: Simplify right side
    28,781.95x = 636,966,768.87
  5. Step 5: Solve for x
    x = 636,966,768.87/28,781.95
  6. Step 6: Final answer
    x = 22,130.77

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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.