Home / 26,478.24-39,722.25-8,709.90

Finding the Fourth Proportional to 26,478.24, 39,722.25 and 8,709.90

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Solution

The fourth proportional to 26,478.24, 39,722.25 and 8,709.90 is: 13,066.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,478.24 : 39,722.25 = 8,709.90 : x
  2. Step 2: Convert to fraction form
    26,478.24/39,722.25 = 8,709.90/x
  3. Step 3: Cross multiply
    26,478.24x = 39,722.25 × 8,709.90
  4. Step 4: Simplify right side
    26,478.24x = 345,976,825.28
  5. Step 5: Solve for x
    x = 345,976,825.28/26,478.24
  6. Step 6: Final answer
    x = 13,066.46

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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.