Home / 27,793.28-38,354.36-15,856.82

Finding the Fourth Proportional to 27,793.28, 38,354.36 and 15,856.82

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Solution

The fourth proportional to 27,793.28, 38,354.36 and 15,856.82 is: 21,882.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,793.28 : 38,354.36 = 15,856.82 : x
  2. Step 2: Convert to fraction form
    27,793.28/38,354.36 = 15,856.82/x
  3. Step 3: Cross multiply
    27,793.28x = 38,354.36 × 15,856.82
  4. Step 4: Simplify right side
    27,793.28x = 608,178,030.61
  5. Step 5: Solve for x
    x = 608,178,030.61/27,793.28
  6. Step 6: Final answer
    x = 21,882.20

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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.