Home / 19,122.60-28,685.16-5,082.42

Finding the Fourth Proportional to 19,122.60, 28,685.16 and 5,082.42

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Solution

The fourth proportional to 19,122.60, 28,685.16 and 5,082.42 is: 7,623.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,122.60 : 28,685.16 = 5,082.42 : x
  2. Step 2: Convert to fraction form
    19,122.60/28,685.16 = 5,082.42/x
  3. Step 3: Cross multiply
    19,122.60x = 28,685.16 × 5,082.42
  4. Step 4: Simplify right side
    19,122.60x = 145,790,030.89
  5. Step 5: Solve for x
    x = 145,790,030.89/19,122.60
  6. Step 6: Final answer
    x = 7,623.96

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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.