Home / 27,715.20-41,572.96-6,938.72

Finding the Fourth Proportional to 27,715.20, 41,572.96 and 6,938.72

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Solution

The fourth proportional to 27,715.20, 41,572.96 and 6,938.72 is: 10,408.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,715.20 : 41,572.96 = 6,938.72 : x
  2. Step 2: Convert to fraction form
    27,715.20/41,572.96 = 6,938.72/x
  3. Step 3: Cross multiply
    27,715.20x = 41,572.96 × 6,938.72
  4. Step 4: Simplify right side
    27,715.20x = 288,463,129.01
  5. Step 5: Solve for x
    x = 288,463,129.01/27,715.20
  6. Step 6: Final answer
    x = 10,408.12

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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.