Home / 31,906.26-47,881.29-11,129.76

Finding the Fourth Proportional to 31,906.26, 47,881.29 and 11,129.76

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Solution

The fourth proportional to 31,906.26, 47,881.29 and 11,129.76 is: 16,702.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,906.26 : 47,881.29 = 11,129.76 : x
  2. Step 2: Convert to fraction form
    31,906.26/47,881.29 = 11,129.76/x
  3. Step 3: Cross multiply
    31,906.26x = 47,881.29 × 11,129.76
  4. Step 4: Simplify right side
    31,906.26x = 532,907,266.19
  5. Step 5: Solve for x
    x = 532,907,266.19/31,906.26
  6. Step 6: Final answer
    x = 16,702.28

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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.