Home / 31,347.22-43,259.17-17,918.77

Finding the Fourth Proportional to 31,347.22, 43,259.17 and 17,918.77

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Solution

The fourth proportional to 31,347.22, 43,259.17 and 17,918.77 is: 24,727.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,347.22 : 43,259.17 = 17,918.77 : x
  2. Step 2: Convert to fraction form
    31,347.22/43,259.17 = 17,918.77/x
  3. Step 3: Cross multiply
    31,347.22x = 43,259.17 × 17,918.77
  4. Step 4: Simplify right side
    31,347.22x = 775,151,079.38
  5. Step 5: Solve for x
    x = 775,151,079.38/31,347.22
  6. Step 6: Final answer
    x = 24,727.90

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Double scale
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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.