Home / 20,207.64-30,318.68-10,351.56

Finding the Fourth Proportional to 20,207.64, 30,318.68 and 10,351.56

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Solution

The fourth proportional to 20,207.64, 30,318.68 and 10,351.56 is: 15,531.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,207.64 : 30,318.68 = 10,351.56 : x
  2. Step 2: Convert to fraction form
    20,207.64/30,318.68 = 10,351.56/x
  3. Step 3: Cross multiply
    20,207.64x = 30,318.68 × 10,351.56
  4. Step 4: Simplify right side
    20,207.64x = 313,845,635.14
  5. Step 5: Solve for x
    x = 313,845,635.14/20,207.64
  6. Step 6: Final answer
    x = 15,531.04

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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.