Home / 42,621.60-63,908.40-16,327.20

Finding the Fourth Proportional to 42,621.60, 63,908.40 and 16,327.20

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Solution

The fourth proportional to 42,621.60, 63,908.40 and 16,327.20 is: 24,481.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,621.60 : 63,908.40 = 16,327.20 : x
  2. Step 2: Convert to fraction form
    42,621.60/63,908.40 = 16,327.20/x
  3. Step 3: Cross multiply
    42,621.60x = 63,908.40 × 16,327.20
  4. Step 4: Simplify right side
    42,621.60x = 1,043,445,228.48
  5. Step 5: Solve for x
    x = 1,043,445,228.48/42,621.60
  6. Step 6: Final answer
    x = 24,481.61

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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.