Home / 29,148.10-43,722.15-12,505.30

Finding the Fourth Proportional to 29,148.10, 43,722.15 and 12,505.30

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Solution

The fourth proportional to 29,148.10, 43,722.15 and 12,505.30 is: 18,757.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,148.10 : 43,722.15 = 12,505.30 : x
  2. Step 2: Convert to fraction form
    29,148.10/43,722.15 = 12,505.30/x
  3. Step 3: Cross multiply
    29,148.10x = 43,722.15 × 12,505.30
  4. Step 4: Simplify right side
    29,148.10x = 546,758,602.40
  5. Step 5: Solve for x
    x = 546,758,602.40/29,148.10
  6. Step 6: Final answer
    x = 18,757.95

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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.