Home / 42,458.76-63,697.32-12,878.85

Finding the Fourth Proportional to 42,458.76, 63,697.32 and 12,878.85

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Solution

The fourth proportional to 42,458.76, 63,697.32 and 12,878.85 is: 19,321.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,458.76 : 63,697.32 = 12,878.85 : x
  2. Step 2: Convert to fraction form
    42,458.76/63,697.32 = 12,878.85/x
  3. Step 3: Cross multiply
    42,458.76x = 63,697.32 × 12,878.85
  4. Step 4: Simplify right side
    42,458.76x = 820,348,229.68
  5. Step 5: Solve for x
    x = 820,348,229.68/42,458.76
  6. Step 6: Final answer
    x = 19,321.06

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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.