Home / 28,342.56-42,514.14-11,691.12

Finding the Fourth Proportional to 28,342.56, 42,514.14 and 11,691.12

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Solution

The fourth proportional to 28,342.56, 42,514.14 and 11,691.12 is: 17,536.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,342.56 : 42,514.14 = 11,691.12 : x
  2. Step 2: Convert to fraction form
    28,342.56/42,514.14 = 11,691.12/x
  3. Step 3: Cross multiply
    28,342.56x = 42,514.14 × 11,691.12
  4. Step 4: Simplify right side
    28,342.56x = 497,037,912.44
  5. Step 5: Solve for x
    x = 497,037,912.44/28,342.56
  6. Step 6: Final answer
    x = 17,536.80

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1.5x scale

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.