Home / 43,183.92-64,778.64-13,602.72

Finding the Fourth Proportional to 43,183.92, 64,778.64 and 13,602.72

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Solution

The fourth proportional to 43,183.92, 64,778.64 and 13,602.72 is: 20,404.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,183.92 : 64,778.64 = 13,602.72 : x
  2. Step 2: Convert to fraction form
    43,183.92/64,778.64 = 13,602.72/x
  3. Step 3: Cross multiply
    43,183.92x = 64,778.64 × 13,602.72
  4. Step 4: Simplify right side
    43,183.92x = 881,165,701.90
  5. Step 5: Solve for x
    x = 881,165,701.90/43,183.92
  6. Step 6: Final answer
    x = 20,404.95

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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.