Home / 29,115.60-43,673.40-12,472.80

Finding the Fourth Proportional to 29,115.60, 43,673.40 and 12,472.80

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Solution

The fourth proportional to 29,115.60, 43,673.40 and 12,472.80 is: 18,709.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,115.60 : 43,673.40 = 12,472.80 : x
  2. Step 2: Convert to fraction form
    29,115.60/43,673.40 = 12,472.80/x
  3. Step 3: Cross multiply
    29,115.60x = 43,673.40 × 12,472.80
  4. Step 4: Simplify right side
    29,115.60x = 544,729,583.52
  5. Step 5: Solve for x
    x = 544,729,583.52/29,115.60
  6. Step 6: Final answer
    x = 18,709.20

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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.