Home / 28,098.22-42,147.18-11,458.18

Finding the Fourth Proportional to 28,098.22, 42,147.18 and 11,458.18

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Solution

The fourth proportional to 28,098.22, 42,147.18 and 11,458.18 is: 17,187.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,098.22 : 42,147.18 = 11,458.18 : x
  2. Step 2: Convert to fraction form
    28,098.22/42,147.18 = 11,458.18/x
  3. Step 3: Cross multiply
    28,098.22x = 42,147.18 × 11,458.18
  4. Step 4: Simplify right side
    28,098.22x = 482,929,974.93
  5. Step 5: Solve for x
    x = 482,929,974.93/28,098.22
  6. Step 6: Final answer
    x = 17,187.21

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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.