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Finding the Fourth Proportional to 31,990.88, 44,148 and 18,562.88

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Solution

The fourth proportional to 31,990.88, 44,148 and 18,562.88 is: 25,617.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,990.88 : 44,148 = 18,562.88 : x
  2. Step 2: Convert to fraction form
    31,990.88/44,148 = 18,562.88/x
  3. Step 3: Cross multiply
    31,990.88x = 44,148 × 18,562.88
  4. Step 4: Simplify right side
    31,990.88x = 819,514,026.24
  5. Step 5: Solve for x
    x = 819,514,026.24/31,990.88
  6. Step 6: Final answer
    x = 25,617.11

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1.5x scale

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.