Home / 17,428.08-26,138.19-4,947.85

Finding the Fourth Proportional to 17,428.08, 26,138.19 and 4,947.85

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Solution

The fourth proportional to 17,428.08, 26,138.19 and 4,947.85 is: 7,420.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,428.08 : 26,138.19 = 4,947.85 : x
  2. Step 2: Convert to fraction form
    17,428.08/26,138.19 = 4,947.85/x
  3. Step 3: Cross multiply
    17,428.08x = 26,138.19 × 4,947.85
  4. Step 4: Simplify right side
    17,428.08x = 129,327,712.70
  5. Step 5: Solve for x
    x = 129,327,712.70/17,428.08
  6. Step 6: Final answer
    x = 7,420.65

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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.