Home / 19,939.28-29,902.34-6,609.20

Finding the Fourth Proportional to 19,939.28, 29,902.34 and 6,609.20

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Solution

The fourth proportional to 19,939.28, 29,902.34 and 6,609.20 is: 9,911.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,939.28 : 29,902.34 = 6,609.20 : x
  2. Step 2: Convert to fraction form
    19,939.28/29,902.34 = 6,609.20/x
  3. Step 3: Cross multiply
    19,939.28x = 29,902.34 × 6,609.20
  4. Step 4: Simplify right side
    19,939.28x = 197,630,545.53
  5. Step 5: Solve for x
    x = 197,630,545.53/19,939.28
  6. Step 6: Final answer
    x = 9,911.62

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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.