Home / 20,724.67-31,082.64-6,686.02

Finding the Fourth Proportional to 20,724.67, 31,082.64 and 6,686.02

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Solution

The fourth proportional to 20,724.67, 31,082.64 and 6,686.02 is: 10,027.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,724.67 : 31,082.64 = 6,686.02 : x
  2. Step 2: Convert to fraction form
    20,724.67/31,082.64 = 6,686.02/x
  3. Step 3: Cross multiply
    20,724.67x = 31,082.64 × 6,686.02
  4. Step 4: Simplify right side
    20,724.67x = 207,819,152.69
  5. Step 5: Solve for x
    x = 207,819,152.69/20,724.67
  6. Step 6: Final answer
    x = 10,027.62

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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.