Home / 43,519.92-65,278.80-13,937.64

Finding the Fourth Proportional to 43,519.92, 65,278.80 and 13,937.64

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Solution

The fourth proportional to 43,519.92, 65,278.80 and 13,937.64 is: 20,906.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,519.92 : 65,278.80 = 13,937.64 : x
  2. Step 2: Convert to fraction form
    43,519.92/65,278.80 = 13,937.64/x
  3. Step 3: Cross multiply
    43,519.92x = 65,278.80 × 13,937.64
  4. Step 4: Simplify right side
    43,519.92x = 909,832,414.03
  5. Step 5: Solve for x
    x = 909,832,414.03/43,519.92
  6. Step 6: Final answer
    x = 20,906.11

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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.