Home / 43,305.76-64,951.08-12,143.44

Finding the Fourth Proportional to 43,305.76, 64,951.08 and 12,143.44

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Solution

The fourth proportional to 43,305.76, 64,951.08 and 12,143.44 is: 18,213.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,305.76 : 64,951.08 = 12,143.44 : x
  2. Step 2: Convert to fraction form
    43,305.76/64,951.08 = 12,143.44/x
  3. Step 3: Cross multiply
    43,305.76x = 64,951.08 × 12,143.44
  4. Step 4: Simplify right side
    43,305.76x = 788,729,542.92
  5. Step 5: Solve for x
    x = 788,729,542.92/43,305.76
  6. Step 6: Final answer
    x = 18,213.04

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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.