Home / 19,868.22-29,805.17-7,387.20

Finding the Fourth Proportional to 19,868.22, 29,805.17 and 7,387.20

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Solution

The fourth proportional to 19,868.22, 29,805.17 and 7,387.20 is: 11,081.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,868.22 : 29,805.17 = 7,387.20 : x
  2. Step 2: Convert to fraction form
    19,868.22/29,805.17 = 7,387.20/x
  3. Step 3: Cross multiply
    19,868.22x = 29,805.17 × 7,387.20
  4. Step 4: Simplify right side
    19,868.22x = 220,176,714.89
  5. Step 5: Solve for x
    x = 220,176,714.89/19,868.22
  6. Step 6: Final answer
    x = 11,081.85

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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.