Home / 43,987.76-65,979.48-14,419.52

Finding the Fourth Proportional to 43,987.76, 65,979.48 and 14,419.52

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Solution

The fourth proportional to 43,987.76, 65,979.48 and 14,419.52 is: 21,628.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,987.76 : 65,979.48 = 14,419.52 : x
  2. Step 2: Convert to fraction form
    43,987.76/65,979.48 = 14,419.52/x
  3. Step 3: Cross multiply
    43,987.76x = 65,979.48 × 14,419.52
  4. Step 4: Simplify right side
    43,987.76x = 951,392,431.45
  5. Step 5: Solve for x
    x = 951,392,431.45/43,987.76
  6. Step 6: Final answer
    x = 21,628.57

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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.