Home / 19,469.22-29,147.55-11,439.70

Finding the Fourth Proportional to 19,469.22, 29,147.55 and 11,439.70

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Solution

The fourth proportional to 19,469.22, 29,147.55 and 11,439.70 is: 17,126.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,469.22 : 29,147.55 = 11,439.70 : x
  2. Step 2: Convert to fraction form
    19,469.22/29,147.55 = 11,439.70/x
  3. Step 3: Cross multiply
    19,469.22x = 29,147.55 × 11,439.70
  4. Step 4: Simplify right side
    19,469.22x = 333,439,227.74
  5. Step 5: Solve for x
    x = 333,439,227.74/19,469.22
  6. Step 6: Final answer
    x = 17,126.48

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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.