Home / 31,474.74-47,212.24-12,755.13

Finding the Fourth Proportional to 31,474.74, 47,212.24 and 12,755.13

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Solution

The fourth proportional to 31,474.74, 47,212.24 and 12,755.13 is: 19,132.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,474.74 : 47,212.24 = 12,755.13 : x
  2. Step 2: Convert to fraction form
    31,474.74/47,212.24 = 12,755.13/x
  3. Step 3: Cross multiply
    31,474.74x = 47,212.24 × 12,755.13
  4. Step 4: Simplify right side
    31,474.74x = 602,198,258.79
  5. Step 5: Solve for x
    x = 602,198,258.79/31,474.74
  6. Step 6: Final answer
    x = 19,132.75

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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.