Home / 31,242.36-43,115.20-17,814.90

Finding the Fourth Proportional to 31,242.36, 43,115.20 and 17,814.90

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Solution

The fourth proportional to 31,242.36, 43,115.20 and 17,814.90 is: 24,584.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,242.36 : 43,115.20 = 17,814.90 : x
  2. Step 2: Convert to fraction form
    31,242.36/43,115.20 = 17,814.90/x
  3. Step 3: Cross multiply
    31,242.36x = 43,115.20 × 17,814.90
  4. Step 4: Simplify right side
    31,242.36x = 768,092,976.48
  5. Step 5: Solve for x
    x = 768,092,976.48/31,242.36
  6. Step 6: Final answer
    x = 24,584.99

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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.