Home / 36,314.96-54,479.30-12,621.60

Finding the Fourth Proportional to 36,314.96, 54,479.30 and 12,621.60

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Solution

The fourth proportional to 36,314.96, 54,479.30 and 12,621.60 is: 18,934.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,314.96 : 54,479.30 = 12,621.60 : x
  2. Step 2: Convert to fraction form
    36,314.96/54,479.30 = 12,621.60/x
  3. Step 3: Cross multiply
    36,314.96x = 54,479.30 × 12,621.60
  4. Step 4: Simplify right side
    36,314.96x = 687,615,932.88
  5. Step 5: Solve for x
    x = 687,615,932.88/36,314.96
  6. Step 6: Final answer
    x = 18,934.78

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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.