Home / 43,573.90-65,354.68-13,987.84

Finding the Fourth Proportional to 43,573.90, 65,354.68 and 13,987.84

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Solution

The fourth proportional to 43,573.90, 65,354.68 and 13,987.84 is: 20,979.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,573.90 : 65,354.68 = 13,987.84 : x
  2. Step 2: Convert to fraction form
    43,573.90/65,354.68 = 13,987.84/x
  3. Step 3: Cross multiply
    43,573.90x = 65,354.68 × 13,987.84
  4. Step 4: Simplify right side
    43,573.90x = 914,170,807.09
  5. Step 5: Solve for x
    x = 914,170,807.09/43,573.90
  6. Step 6: Final answer
    x = 20,979.78

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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.