Home / 20,230.60-30,281.10-15,824.20

Finding the Fourth Proportional to 20,230.60, 30,281.10 and 15,824.20

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Solution

The fourth proportional to 20,230.60, 30,281.10 and 15,824.20 is: 23,685.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,230.60 : 30,281.10 = 15,824.20 : x
  2. Step 2: Convert to fraction form
    20,230.60/30,281.10 = 15,824.20/x
  3. Step 3: Cross multiply
    20,230.60x = 30,281.10 × 15,824.20
  4. Step 4: Simplify right side
    20,230.60x = 479,174,182.62
  5. Step 5: Solve for x
    x = 479,174,182.62/20,230.60
  6. Step 6: Final answer
    x = 23,685.61

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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.