Home / 26,115.76-39,177.96-12,968.56

Finding the Fourth Proportional to 26,115.76, 39,177.96 and 12,968.56

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Solution

The fourth proportional to 26,115.76, 39,177.96 and 12,968.56 is: 19,454.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,115.76 : 39,177.96 = 12,968.56 : x
  2. Step 2: Convert to fraction form
    26,115.76/39,177.96 = 12,968.56/x
  3. Step 3: Cross multiply
    26,115.76x = 39,177.96 × 12,968.56
  4. Step 4: Simplify right side
    26,115.76x = 508,081,724.94
  5. Step 5: Solve for x
    x = 508,081,724.94/26,115.76
  6. Step 6: Final answer
    x = 19,454.99

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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.