Home / 25,791.42-38,680.98-13,305.02

Finding the Fourth Proportional to 25,791.42, 38,680.98 and 13,305.02

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Solution

The fourth proportional to 25,791.42, 38,680.98 and 13,305.02 is: 19,954.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,791.42 : 38,680.98 = 13,305.02 : x
  2. Step 2: Convert to fraction form
    25,791.42/38,680.98 = 13,305.02/x
  3. Step 3: Cross multiply
    25,791.42x = 38,680.98 × 13,305.02
  4. Step 4: Simplify right side
    25,791.42x = 514,651,359.12
  5. Step 5: Solve for x
    x = 514,651,359.12/25,791.42
  6. Step 6: Final answer
    x = 19,954.36

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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.