Home / 31,343.68-43,239.20-18,088

Finding the Fourth Proportional to 31,343.68, 43,239.20 and 18,088

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Solution

The fourth proportional to 31,343.68, 43,239.20 and 18,088 is: 24,952.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,343.68 : 43,239.20 = 18,088 : x
  2. Step 2: Convert to fraction form
    31,343.68/43,239.20 = 18,088/x
  3. Step 3: Cross multiply
    31,343.68x = 43,239.20 × 18,088
  4. Step 4: Simplify right side
    31,343.68x = 782,110,649.60
  5. Step 5: Solve for x
    x = 782,110,649.60/31,343.68
  6. Step 6: Final answer
    x = 24,952.74

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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.