Home / 20,213.28-30,321.54-7,061.04

Finding the Fourth Proportional to 20,213.28, 30,321.54 and 7,061.04

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Solution

The fourth proportional to 20,213.28, 30,321.54 and 7,061.04 is: 10,592.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,213.28 : 30,321.54 = 7,061.04 : x
  2. Step 2: Convert to fraction form
    20,213.28/30,321.54 = 7,061.04/x
  3. Step 3: Cross multiply
    20,213.28x = 30,321.54 × 7,061.04
  4. Step 4: Simplify right side
    20,213.28x = 214,101,606.80
  5. Step 5: Solve for x
    x = 214,101,606.80/20,213.28
  6. Step 6: Final answer
    x = 10,592.13

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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.