Home / 31,314.51-43,217.11-17,887.77

Finding the Fourth Proportional to 31,314.51, 43,217.11 and 17,887.77

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Solution

The fourth proportional to 31,314.51, 43,217.11 and 17,887.77 is: 24,686.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,314.51 : 43,217.11 = 17,887.77 : x
  2. Step 2: Convert to fraction form
    31,314.51/43,217.11 = 17,887.77/x
  3. Step 3: Cross multiply
    31,314.51x = 43,217.11 × 17,887.77
  4. Step 4: Simplify right side
    31,314.51x = 773,057,723.74
  5. Step 5: Solve for x
    x = 773,057,723.74/31,314.51
  6. Step 6: Final answer
    x = 24,686.89

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Similar ratio
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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.