Home / 29,031.60-43,553.64-12,391.92

Finding the Fourth Proportional to 29,031.60, 43,553.64 and 12,391.92

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Solution

The fourth proportional to 29,031.60, 43,553.64 and 12,391.92 is: 18,590.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,031.60 : 43,553.64 = 12,391.92 : x
  2. Step 2: Convert to fraction form
    29,031.60/43,553.64 = 12,391.92/x
  3. Step 3: Cross multiply
    29,031.60x = 43,553.64 × 12,391.92
  4. Step 4: Simplify right side
    29,031.60x = 539,713,222.59
  5. Step 5: Solve for x
    x = 539,713,222.59/29,031.60
  6. Step 6: Final answer
    x = 18,590.54

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1.5x scale

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.