Home / 31,677.12-43,717.68-18,248.88

Finding the Fourth Proportional to 31,677.12, 43,717.68 and 18,248.88

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Solution

The fourth proportional to 31,677.12, 43,717.68 and 18,248.88 is: 25,185.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,677.12 : 43,717.68 = 18,248.88 : x
  2. Step 2: Convert to fraction form
    31,677.12/43,717.68 = 18,248.88/x
  3. Step 3: Cross multiply
    31,677.12x = 43,717.68 × 18,248.88
  4. Step 4: Simplify right side
    31,677.12x = 797,798,696.20
  5. Step 5: Solve for x
    x = 797,798,696.20/31,677.12
  6. Step 6: Final answer
    x = 25,185.33

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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.