Home / 20,102.19-30,154.73-5,310.96

Finding the Fourth Proportional to 20,102.19, 30,154.73 and 5,310.96

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Solution

The fourth proportional to 20,102.19, 30,154.73 and 5,310.96 is: 7,966.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,102.19 : 30,154.73 = 5,310.96 : x
  2. Step 2: Convert to fraction form
    20,102.19/30,154.73 = 5,310.96/x
  3. Step 3: Cross multiply
    20,102.19x = 30,154.73 × 5,310.96
  4. Step 4: Simplify right side
    20,102.19x = 160,150,538.29
  5. Step 5: Solve for x
    x = 160,150,538.29/20,102.19
  6. Step 6: Final answer
    x = 7,966.82

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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.