Home / 43,772.32-65,648.88-12,600.80

Finding the Fourth Proportional to 43,772.32, 65,648.88 and 12,600.80

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Solution

The fourth proportional to 43,772.32, 65,648.88 and 12,600.80 is: 18,898.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,772.32 : 65,648.88 = 12,600.80 : x
  2. Step 2: Convert to fraction form
    43,772.32/65,648.88 = 12,600.80/x
  3. Step 3: Cross multiply
    43,772.32x = 65,648.88 × 12,600.80
  4. Step 4: Simplify right side
    43,772.32x = 827,228,407.10
  5. Step 5: Solve for x
    x = 827,228,407.10/43,772.32
  6. Step 6: Final answer
    x = 18,898.44

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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.