Home / 20,301.28-30,451.24-7,153.31

Finding the Fourth Proportional to 20,301.28, 30,451.24 and 7,153.31

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Solution

The fourth proportional to 20,301.28, 30,451.24 and 7,153.31 is: 10,729.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,301.28 : 30,451.24 = 7,153.31 : x
  2. Step 2: Convert to fraction form
    20,301.28/30,451.24 = 7,153.31/x
  3. Step 3: Cross multiply
    20,301.28x = 30,451.24 × 7,153.31
  4. Step 4: Simplify right side
    20,301.28x = 217,827,244.67
  5. Step 5: Solve for x
    x = 217,827,244.67/20,301.28
  6. Step 6: Final answer
    x = 10,729.73

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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.