Home / 19,540.28-29,304.20-6,389.12

Finding the Fourth Proportional to 19,540.28, 29,304.20 and 6,389.12

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Solution

The fourth proportional to 19,540.28, 29,304.20 and 6,389.12 is: 9,581.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,540.28 : 29,304.20 = 6,389.12 : x
  2. Step 2: Convert to fraction form
    19,540.28/29,304.20 = 6,389.12/x
  3. Step 3: Cross multiply
    19,540.28x = 29,304.20 × 6,389.12
  4. Step 4: Simplify right side
    19,540.28x = 187,228,050.30
  5. Step 5: Solve for x
    x = 187,228,050.30/19,540.28
  6. Step 6: Final answer
    x = 9,581.65

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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.