Home / 27,809.52-38,377.12-15,234.72

Finding the Fourth Proportional to 27,809.52, 38,377.12 and 15,234.72

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Solution

The fourth proportional to 27,809.52, 38,377.12 and 15,234.72 is: 21,023.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,809.52 : 38,377.12 = 15,234.72 : x
  2. Step 2: Convert to fraction form
    27,809.52/38,377.12 = 15,234.72/x
  3. Step 3: Cross multiply
    27,809.52x = 38,377.12 × 15,234.72
  4. Step 4: Simplify right side
    27,809.52x = 584,664,677.61
  5. Step 5: Solve for x
    x = 584,664,677.61/27,809.52
  6. Step 6: Final answer
    x = 21,023.90

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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.