Home / 21,854.68-32,734.63-13,536.79

Finding the Fourth Proportional to 21,854.68, 32,734.63 and 13,536.79

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Solution

The fourth proportional to 21,854.68, 32,734.63 and 13,536.79 is: 20,275.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,854.68 : 32,734.63 = 13,536.79 : x
  2. Step 2: Convert to fraction form
    21,854.68/32,734.63 = 13,536.79/x
  3. Step 3: Cross multiply
    21,854.68x = 32,734.63 × 13,536.79
  4. Step 4: Simplify right side
    21,854.68x = 443,121,747.12
  5. Step 5: Solve for x
    x = 443,121,747.12/21,854.68
  6. Step 6: Final answer
    x = 20,275.83

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.