Home / 19,344.55-29,016.82-12,769.20

Finding the Fourth Proportional to 19,344.55, 29,016.82 and 12,769.20

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Solution

The fourth proportional to 19,344.55, 29,016.82 and 12,769.20 is: 19,153.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,344.55 : 29,016.82 = 12,769.20 : x
  2. Step 2: Convert to fraction form
    19,344.55/29,016.82 = 12,769.20/x
  3. Step 3: Cross multiply
    19,344.55x = 29,016.82 × 12,769.20
  4. Step 4: Simplify right side
    19,344.55x = 370,521,432.86
  5. Step 5: Solve for x
    x = 370,521,432.86/19,344.55
  6. Step 6: Final answer
    x = 19,153.79

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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.