Home / 26,348.28-39,478.55-18,540.69

Finding the Fourth Proportional to 26,348.28, 39,478.55 and 18,540.69

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Solution

The fourth proportional to 26,348.28, 39,478.55 and 18,540.69 is: 27,780.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,348.28 : 39,478.55 = 18,540.69 : x
  2. Step 2: Convert to fraction form
    26,348.28/39,478.55 = 18,540.69/x
  3. Step 3: Cross multiply
    26,348.28x = 39,478.55 × 18,540.69
  4. Step 4: Simplify right side
    26,348.28x = 731,959,464.50
  5. Step 5: Solve for x
    x = 731,959,464.50/26,348.28
  6. Step 6: Final answer
    x = 27,780.16

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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.