Home / 28,882.74-39,838.77-21,731.25

Finding the Fourth Proportional to 28,882.74, 39,838.77 and 21,731.25

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Solution

The fourth proportional to 28,882.74, 39,838.77 and 21,731.25 is: 29,974.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,882.74 : 39,838.77 = 21,731.25 : x
  2. Step 2: Convert to fraction form
    28,882.74/39,838.77 = 21,731.25/x
  3. Step 3: Cross multiply
    28,882.74x = 39,838.77 × 21,731.25
  4. Step 4: Simplify right side
    28,882.74x = 865,746,270.56
  5. Step 5: Solve for x
    x = 865,746,270.56/28,882.74
  6. Step 6: Final answer
    x = 29,974.52

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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.