Home / 27,648.20-38,155.50-15,711.14

Finding the Fourth Proportional to 27,648.20, 38,155.50 and 15,711.14

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Solution

The fourth proportional to 27,648.20, 38,155.50 and 15,711.14 is: 21,681.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,648.20 : 38,155.50 = 15,711.14 : x
  2. Step 2: Convert to fraction form
    27,648.20/38,155.50 = 15,711.14/x
  3. Step 3: Cross multiply
    27,648.20x = 38,155.50 × 15,711.14
  4. Step 4: Simplify right side
    27,648.20x = 599,466,402.27
  5. Step 5: Solve for x
    x = 599,466,402.27/27,648.20
  6. Step 6: Final answer
    x = 21,681.93

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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.