Home / 43,899.64-65,864.25-13,918.78

Finding the Fourth Proportional to 43,899.64, 65,864.25 and 13,918.78

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Solution

The fourth proportional to 43,899.64, 65,864.25 and 13,918.78 is: 20,882.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,899.64 : 65,864.25 = 13,918.78 : x
  2. Step 2: Convert to fraction form
    43,899.64/65,864.25 = 13,918.78/x
  3. Step 3: Cross multiply
    43,899.64x = 65,864.25 × 13,918.78
  4. Step 4: Simplify right side
    43,899.64x = 916,750,005.62
  5. Step 5: Solve for x
    x = 916,750,005.62/43,899.64
  6. Step 6: Final answer
    x = 20,882.86

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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.