Home / 31,726.84-43,781.80-18,115.56

Finding the Fourth Proportional to 31,726.84, 43,781.80 and 18,115.56

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Solution

The fourth proportional to 31,726.84, 43,781.80 and 18,115.56 is: 24,998.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,726.84 : 43,781.80 = 18,115.56 : x
  2. Step 2: Convert to fraction form
    31,726.84/43,781.80 = 18,115.56/x
  3. Step 3: Cross multiply
    31,726.84x = 43,781.80 × 18,115.56
  4. Step 4: Simplify right side
    31,726.84x = 793,131,674.42
  5. Step 5: Solve for x
    x = 793,131,674.42/31,726.84
  6. Step 6: Final answer
    x = 24,998.76

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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.