Home / 20,960.87-31,433.00-9,265.91

Finding the Fourth Proportional to 20,960.87, 31,433.00 and 9,265.91

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Solution

The fourth proportional to 20,960.87, 31,433.00 and 9,265.91 is: 13,895.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,960.87 : 31,433.00 = 9,265.91 : x
  2. Step 2: Convert to fraction form
    20,960.87/31,433.00 = 9,265.91/x
  3. Step 3: Cross multiply
    20,960.87x = 31,433.00 × 9,265.91
  4. Step 4: Simplify right side
    20,960.87x = 291,255,145.54
  5. Step 5: Solve for x
    x = 291,255,145.54/20,960.87
  6. Step 6: Final answer
    x = 13,895.19

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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.