Home / 29,138.76-43,708.17-12,488.00

Finding the Fourth Proportional to 29,138.76, 43,708.17 and 12,488.00

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Solution

The fourth proportional to 29,138.76, 43,708.17 and 12,488.00 is: 18,732.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,138.76 : 43,708.17 = 12,488.00 : x
  2. Step 2: Convert to fraction form
    29,138.76/43,708.17 = 12,488.00/x
  3. Step 3: Cross multiply
    29,138.76x = 43,708.17 × 12,488.00
  4. Step 4: Simplify right side
    29,138.76x = 545,827,408.42
  5. Step 5: Solve for x
    x = 545,827,408.42/29,138.76
  6. Step 6: Final answer
    x = 18,732.01

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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.