Home / 26,419.29-39,591.94-18,988.89

Finding the Fourth Proportional to 26,419.29, 39,591.94 and 18,988.89

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Solution

The fourth proportional to 26,419.29, 39,591.94 and 18,988.89 is: 28,456.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,419.29 : 39,591.94 = 18,988.89 : x
  2. Step 2: Convert to fraction form
    26,419.29/39,591.94 = 18,988.89/x
  3. Step 3: Cross multiply
    26,419.29x = 39,591.94 × 18,988.89
  4. Step 4: Simplify right side
    26,419.29x = 751,806,993.55
  5. Step 5: Solve for x
    x = 751,806,993.55/26,419.29
  6. Step 6: Final answer
    x = 28,456.74

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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.