Home / 31,498.31-47,247.57-21,607.61

Finding the Fourth Proportional to 31,498.31, 47,247.57 and 21,607.61

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Solution

The fourth proportional to 31,498.31, 47,247.57 and 21,607.61 is: 32,411.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,498.31 : 47,247.57 = 21,607.61 : x
  2. Step 2: Convert to fraction form
    31,498.31/47,247.57 = 21,607.61/x
  3. Step 3: Cross multiply
    31,498.31x = 47,247.57 × 21,607.61
  4. Step 4: Simplify right side
    31,498.31x = 1,020,906,829.77
  5. Step 5: Solve for x
    x = 1,020,906,829.77/31,498.31
  6. Step 6: Final answer
    x = 32,411.48

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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.