Home / 31,400.86-43,333.17-17,254.61

Finding the Fourth Proportional to 31,400.86, 43,333.17 and 17,254.61

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Solution

The fourth proportional to 31,400.86, 43,333.17 and 17,254.61 is: 23,811.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,400.86 : 43,333.17 = 17,254.61 : x
  2. Step 2: Convert to fraction form
    31,400.86/43,333.17 = 17,254.61/x
  3. Step 3: Cross multiply
    31,400.86x = 43,333.17 × 17,254.61
  4. Step 4: Simplify right side
    31,400.86x = 747,696,948.41
  5. Step 5: Solve for x
    x = 747,696,948.41/31,400.86
  6. Step 6: Final answer
    x = 23,811.35

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.