Home / 31,780.08-47,672.28-9,591.84

Finding the Fourth Proportional to 31,780.08, 47,672.28 and 9,591.84

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Solution

The fourth proportional to 31,780.08, 47,672.28 and 9,591.84 is: 14,388.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,780.08 : 47,672.28 = 9,591.84 : x
  2. Step 2: Convert to fraction form
    31,780.08/47,672.28 = 9,591.84/x
  3. Step 3: Cross multiply
    31,780.08x = 47,672.28 × 9,591.84
  4. Step 4: Simplify right side
    31,780.08x = 457,264,882.20
  5. Step 5: Solve for x
    x = 457,264,882.20/31,780.08
  6. Step 6: Final answer
    x = 14,388.41

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.