Home / 19,710.11-29,549.19-13,454.36

Finding the Fourth Proportional to 19,710.11, 29,549.19 and 13,454.36

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Solution

The fourth proportional to 19,710.11, 29,549.19 and 13,454.36 is: 20,170.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,710.11 : 29,549.19 = 13,454.36 : x
  2. Step 2: Convert to fraction form
    19,710.11/29,549.19 = 13,454.36/x
  3. Step 3: Cross multiply
    19,710.11x = 29,549.19 × 13,454.36
  4. Step 4: Simplify right side
    19,710.11x = 397,565,439.97
  5. Step 5: Solve for x
    x = 397,565,439.97/19,710.11
  6. Step 6: Final answer
    x = 20,170.64

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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.