Home / 26,156.13-39,228.66-8,621.79

Finding the Fourth Proportional to 26,156.13, 39,228.66 and 8,621.79

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Solution

The fourth proportional to 26,156.13, 39,228.66 and 8,621.79 is: 12,930.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,156.13 : 39,228.66 = 8,621.79 : x
  2. Step 2: Convert to fraction form
    26,156.13/39,228.66 = 8,621.79/x
  3. Step 3: Cross multiply
    26,156.13x = 39,228.66 × 8,621.79
  4. Step 4: Simplify right side
    26,156.13x = 338,221,268.50
  5. Step 5: Solve for x
    x = 338,221,268.50/26,156.13
  6. Step 6: Final answer
    x = 12,930.86

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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.