Home / 43,831.38-65,758.11-12,666.42

Finding the Fourth Proportional to 43,831.38, 65,758.11 and 12,666.42

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Solution

The fourth proportional to 43,831.38, 65,758.11 and 12,666.42 is: 19,002.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,831.38 : 65,758.11 = 12,666.42 : x
  2. Step 2: Convert to fraction form
    43,831.38/65,758.11 = 12,666.42/x
  3. Step 3: Cross multiply
    43,831.38x = 65,758.11 × 12,666.42
  4. Step 4: Simplify right side
    43,831.38x = 832,919,839.67
  5. Step 5: Solve for x
    x = 832,919,839.67/43,831.38
  6. Step 6: Final answer
    x = 19,002.82

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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.