Home / 17,613.12-26,396.88-13,437.72

Finding the Fourth Proportional to 17,613.12, 26,396.88 and 13,437.72

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Solution

The fourth proportional to 17,613.12, 26,396.88 and 13,437.72 is: 20,139.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,613.12 : 26,396.88 = 13,437.72 : x
  2. Step 2: Convert to fraction form
    17,613.12/26,396.88 = 13,437.72/x
  3. Step 3: Cross multiply
    17,613.12x = 26,396.88 × 13,437.72
  4. Step 4: Simplify right side
    17,613.12x = 354,713,882.31
  5. Step 5: Solve for x
    x = 354,713,882.31/17,613.12
  6. Step 6: Final answer
    x = 20,139.19

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.