Home / 20,180.48-30,251.28-10,813.64

Finding the Fourth Proportional to 20,180.48, 30,251.28 and 10,813.64

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Solution

The fourth proportional to 20,180.48, 30,251.28 and 10,813.64 is: 16,210.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,180.48 : 30,251.28 = 10,813.64 : x
  2. Step 2: Convert to fraction form
    20,180.48/30,251.28 = 10,813.64/x
  3. Step 3: Cross multiply
    20,180.48x = 30,251.28 × 10,813.64
  4. Step 4: Simplify right side
    20,180.48x = 327,126,451.46
  5. Step 5: Solve for x
    x = 327,126,451.46/20,180.48
  6. Step 6: Final answer
    x = 16,210.04

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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.