Home / 31,543.68-43,537.88-18,966

Finding the Fourth Proportional to 31,543.68, 43,537.88 and 18,966

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Solution

The fourth proportional to 31,543.68, 43,537.88 and 18,966 is: 26,177.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,543.68 : 43,537.88 = 18,966 : x
  2. Step 2: Convert to fraction form
    31,543.68/43,537.88 = 18,966/x
  3. Step 3: Cross multiply
    31,543.68x = 43,537.88 × 18,966
  4. Step 4: Simplify right side
    31,543.68x = 825,739,432.08
  5. Step 5: Solve for x
    x = 825,739,432.08/31,543.68
  6. Step 6: Final answer
    x = 26,177.65

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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.