Home / 22,679.60-31,294.20-12,607.88

Finding the Fourth Proportional to 22,679.60, 31,294.20 and 12,607.88

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Solution

The fourth proportional to 22,679.60, 31,294.20 and 12,607.88 is: 17,396.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,679.60 : 31,294.20 = 12,607.88 : x
  2. Step 2: Convert to fraction form
    22,679.60/31,294.20 = 12,607.88/x
  3. Step 3: Cross multiply
    22,679.60x = 31,294.20 × 12,607.88
  4. Step 4: Simplify right side
    22,679.60x = 394,553,518.30
  5. Step 5: Solve for x
    x = 394,553,518.30/22,679.60
  6. Step 6: Final answer
    x = 17,396.85

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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.