Home / 42,231.10-63,310.20-21,454.60

Finding the Fourth Proportional to 42,231.10, 63,310.20 and 21,454.60

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Solution

The fourth proportional to 42,231.10, 63,310.20 and 21,454.60 is: 32,163.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,231.10 : 63,310.20 = 21,454.60 : x
  2. Step 2: Convert to fraction form
    42,231.10/63,310.20 = 21,454.60/x
  3. Step 3: Cross multiply
    42,231.10x = 63,310.20 × 21,454.60
  4. Step 4: Simplify right side
    42,231.10x = 1,358,295,016.92
  5. Step 5: Solve for x
    x = 1,358,295,016.92/42,231.10
  6. Step 6: Final answer
    x = 32,163.38

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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.