Home / 27,732.17-38,270.39-15,156.92

Finding the Fourth Proportional to 27,732.17, 38,270.39 and 15,156.92

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Solution

The fourth proportional to 27,732.17, 38,270.39 and 15,156.92 is: 20,916.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,732.17 : 38,270.39 = 15,156.92 : x
  2. Step 2: Convert to fraction form
    27,732.17/38,270.39 = 15,156.92/x
  3. Step 3: Cross multiply
    27,732.17x = 38,270.39 × 15,156.92
  4. Step 4: Simplify right side
    27,732.17x = 580,061,239.60
  5. Step 5: Solve for x
    x = 580,061,239.60/27,732.17
  6. Step 6: Final answer
    x = 20,916.55

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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.