Home / 21,567.92-29,769.36-13,191.44

Finding the Fourth Proportional to 21,567.92, 29,769.36 and 13,191.44

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Solution

The fourth proportional to 21,567.92, 29,769.36 and 13,191.44 is: 18,207.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,567.92 : 29,769.36 = 13,191.44 : x
  2. Step 2: Convert to fraction form
    21,567.92/29,769.36 = 13,191.44/x
  3. Step 3: Cross multiply
    21,567.92x = 29,769.36 × 13,191.44
  4. Step 4: Simplify right side
    21,567.92x = 392,700,726.28
  5. Step 5: Solve for x
    x = 392,700,726.28/21,567.92
  6. Step 6: Final answer
    x = 18,207.63

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.