Home / 31,301.62-46,960.13-9,115.20

Finding the Fourth Proportional to 31,301.62, 46,960.13 and 9,115.20

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Solution

The fourth proportional to 31,301.62, 46,960.13 and 9,115.20 is: 13,675.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,301.62 : 46,960.13 = 9,115.20 : x
  2. Step 2: Convert to fraction form
    31,301.62/46,960.13 = 9,115.20/x
  3. Step 3: Cross multiply
    31,301.62x = 46,960.13 × 9,115.20
  4. Step 4: Simplify right side
    31,301.62x = 428,050,976.98
  5. Step 5: Solve for x
    x = 428,050,976.98/31,301.62
  6. Step 6: Final answer
    x = 13,675.04

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1.5x scale

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.