Home / 31,382.25-47,080.68-10,605.75

Finding the Fourth Proportional to 31,382.25, 47,080.68 and 10,605.75

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Solution

The fourth proportional to 31,382.25, 47,080.68 and 10,605.75 is: 15,911.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,382.25 : 47,080.68 = 10,605.75 : x
  2. Step 2: Convert to fraction form
    31,382.25/47,080.68 = 10,605.75/x
  3. Step 3: Cross multiply
    31,382.25x = 47,080.68 × 10,605.75
  4. Step 4: Simplify right side
    31,382.25x = 499,325,921.91
  5. Step 5: Solve for x
    x = 499,325,921.91/31,382.25
  6. Step 6: Final answer
    x = 15,911.09

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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.