Home / 20,001.83-30,002.72-5,210.70

Finding the Fourth Proportional to 20,001.83, 30,002.72 and 5,210.70

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Solution

The fourth proportional to 20,001.83, 30,002.72 and 5,210.70 is: 7,816.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,001.83 : 30,002.72 = 5,210.70 : x
  2. Step 2: Convert to fraction form
    20,001.83/30,002.72 = 5,210.70/x
  3. Step 3: Cross multiply
    20,001.83x = 30,002.72 × 5,210.70
  4. Step 4: Simplify right side
    20,001.83x = 156,335,147.05
  5. Step 5: Solve for x
    x = 156,335,147.05/20,001.83
  6. Step 6: Final answer
    x = 7,816.04

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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.