Home / 43,490.80-65,236.86-12,326.02

Finding the Fourth Proportional to 43,490.80, 65,236.86 and 12,326.02

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Solution

The fourth proportional to 43,490.80, 65,236.86 and 12,326.02 is: 18,489.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,490.80 : 65,236.86 = 12,326.02 : x
  2. Step 2: Convert to fraction form
    43,490.80/65,236.86 = 12,326.02/x
  3. Step 3: Cross multiply
    43,490.80x = 65,236.86 × 12,326.02
  4. Step 4: Simplify right side
    43,490.80x = 804,110,841.10
  5. Step 5: Solve for x
    x = 804,110,841.10/43,490.80
  6. Step 6: Final answer
    x = 18,489.22

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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.