Home / 19,921.60-29,882.40-6,068.80

Finding the Fourth Proportional to 19,921.60, 29,882.40 and 6,068.80

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Solution

The fourth proportional to 19,921.60, 29,882.40 and 6,068.80 is: 9,103.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,921.60 : 29,882.40 = 6,068.80 : x
  2. Step 2: Convert to fraction form
    19,921.60/29,882.40 = 6,068.80/x
  3. Step 3: Cross multiply
    19,921.60x = 29,882.40 × 6,068.80
  4. Step 4: Simplify right side
    19,921.60x = 181,350,309.12
  5. Step 5: Solve for x
    x = 181,350,309.12/19,921.60
  6. Step 6: Final answer
    x = 9,103.20

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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.