Home / 21,891.01-32,849.79-8,742.28

Finding the Fourth Proportional to 21,891.01, 32,849.79 and 8,742.28

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Solution

The fourth proportional to 21,891.01, 32,849.79 and 8,742.28 is: 13,118.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,891.01 : 32,849.79 = 8,742.28 : x
  2. Step 2: Convert to fraction form
    21,891.01/32,849.79 = 8,742.28/x
  3. Step 3: Cross multiply
    21,891.01x = 32,849.79 × 8,742.28
  4. Step 4: Simplify right side
    21,891.01x = 287,181,854.16
  5. Step 5: Solve for x
    x = 287,181,854.16/21,891.01
  6. Step 6: Final answer
    x = 13,118.71

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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.