Home / 20,489.42-28,275.96-11,537.24

Finding the Fourth Proportional to 20,489.42, 28,275.96 and 11,537.24

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Solution

The fourth proportional to 20,489.42, 28,275.96 and 11,537.24 is: 15,921.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,489.42 : 28,275.96 = 11,537.24 : x
  2. Step 2: Convert to fraction form
    20,489.42/28,275.96 = 11,537.24/x
  3. Step 3: Cross multiply
    20,489.42x = 28,275.96 × 11,537.24
  4. Step 4: Simplify right side
    20,489.42x = 326,226,536.75
  5. Step 5: Solve for x
    x = 326,226,536.75/20,489.42
  6. Step 6: Final answer
    x = 15,921.71

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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.