Home / 20,026.60-29,975.10-15,620.20

Finding the Fourth Proportional to 20,026.60, 29,975.10 and 15,620.20

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Solution

The fourth proportional to 20,026.60, 29,975.10 and 15,620.20 is: 23,379.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,026.60 : 29,975.10 = 15,620.20 : x
  2. Step 2: Convert to fraction form
    20,026.60/29,975.10 = 15,620.20/x
  3. Step 3: Cross multiply
    20,026.60x = 29,975.10 × 15,620.20
  4. Step 4: Simplify right side
    20,026.60x = 468,217,057.02
  5. Step 5: Solve for x
    x = 468,217,057.02/20,026.60
  6. Step 6: Final answer
    x = 23,379.76

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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.