Home / 43,381.29-65,066.18-12,218.97

Finding the Fourth Proportional to 43,381.29, 65,066.18 and 12,218.97

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Solution

The fourth proportional to 43,381.29, 65,066.18 and 12,218.97 is: 18,326.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,381.29 : 65,066.18 = 12,218.97 : x
  2. Step 2: Convert to fraction form
    43,381.29/65,066.18 = 12,218.97/x
  3. Step 3: Cross multiply
    43,381.29x = 65,066.18 × 12,218.97
  4. Step 4: Simplify right side
    43,381.29x = 795,041,640.34
  5. Step 5: Solve for x
    x = 795,041,640.34/43,381.29
  6. Step 6: Final answer
    x = 18,326.83

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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.