Home / 31,418.19-47,126.89-12,697.93

Finding the Fourth Proportional to 31,418.19, 47,126.89 and 12,697.93

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Solution

The fourth proportional to 31,418.19, 47,126.89 and 12,697.93 is: 19,046.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,418.19 : 47,126.89 = 12,697.93 : x
  2. Step 2: Convert to fraction form
    31,418.19/47,126.89 = 12,697.93/x
  3. Step 3: Cross multiply
    31,418.19x = 47,126.89 × 12,697.93
  4. Step 4: Simplify right side
    31,418.19x = 598,413,790.59
  5. Step 5: Solve for x
    x = 598,413,790.59/31,418.19
  6. Step 6: Final answer
    x = 19,046.73

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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.