Home / 19,451.12-29,132.91-13,633.70

Finding the Fourth Proportional to 19,451.12, 29,132.91 and 13,633.70

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Solution

The fourth proportional to 19,451.12, 29,132.91 and 13,633.70 is: 20,419.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,451.12 : 29,132.91 = 13,633.70 : x
  2. Step 2: Convert to fraction form
    19,451.12/29,132.91 = 13,633.70/x
  3. Step 3: Cross multiply
    19,451.12x = 29,132.91 × 13,633.70
  4. Step 4: Simplify right side
    19,451.12x = 397,189,209.40
  5. Step 5: Solve for x
    x = 397,189,209.40/19,451.12
  6. Step 6: Final answer
    x = 20,419.87

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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.