Home / 20,101.48-30,153.30-5,310.88

Finding the Fourth Proportional to 20,101.48, 30,153.30 and 5,310.88

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Solution

The fourth proportional to 20,101.48, 30,153.30 and 5,310.88 is: 7,966.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,101.48 : 30,153.30 = 5,310.88 : x
  2. Step 2: Convert to fraction form
    20,101.48/30,153.30 = 5,310.88/x
  3. Step 3: Cross multiply
    20,101.48x = 30,153.30 × 5,310.88
  4. Step 4: Simplify right side
    20,101.48x = 160,140,557.90
  5. Step 5: Solve for x
    x = 160,140,557.90/20,101.48
  6. Step 6: Final answer
    x = 7,966.61

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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.