Home / 31,129.47-46,697.10-12,404.97

Finding the Fourth Proportional to 31,129.47, 46,697.10 and 12,404.97

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Solution

The fourth proportional to 31,129.47, 46,697.10 and 12,404.97 is: 18,608.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,129.47 : 46,697.10 = 12,404.97 : x
  2. Step 2: Convert to fraction form
    31,129.47/46,697.10 = 12,404.97/x
  3. Step 3: Cross multiply
    31,129.47x = 46,697.10 × 12,404.97
  4. Step 4: Simplify right side
    31,129.47x = 579,276,124.59
  5. Step 5: Solve for x
    x = 579,276,124.59/31,129.47
  6. Step 6: Final answer
    x = 18,608.61

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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.