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Finding the Fourth Proportional to 27,700.53, 38,226.11 and 15,125.55

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Solution

The fourth proportional to 27,700.53, 38,226.11 and 15,125.55 is: 20,872.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,700.53 : 38,226.11 = 15,125.55 : x
  2. Step 2: Convert to fraction form
    27,700.53/38,226.11 = 15,125.55/x
  3. Step 3: Cross multiply
    27,700.53x = 38,226.11 × 15,125.55
  4. Step 4: Simplify right side
    27,700.53x = 578,190,862.48
  5. Step 5: Solve for x
    x = 578,190,862.48/27,700.53
  6. Step 6: Final answer
    x = 20,872.92

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.