Home / 28,108.13-38,792.07-15,532.88

Finding the Fourth Proportional to 28,108.13, 38,792.07 and 15,532.88

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Solution

The fourth proportional to 28,108.13, 38,792.07 and 15,532.88 is: 21,436.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,108.13 : 38,792.07 = 15,532.88 : x
  2. Step 2: Convert to fraction form
    28,108.13/38,792.07 = 15,532.88/x
  3. Step 3: Cross multiply
    28,108.13x = 38,792.07 × 15,532.88
  4. Step 4: Simplify right side
    28,108.13x = 602,552,374.30
  5. Step 5: Solve for x
    x = 602,552,374.30/28,108.13
  6. Step 6: Final answer
    x = 21,436.95

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1.5x scale

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.