Home / 31,247.28-43,121.26-17,100.12

Finding the Fourth Proportional to 31,247.28, 43,121.26 and 17,100.12

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Solution

The fourth proportional to 31,247.28, 43,121.26 and 17,100.12 is: 23,598.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,247.28 : 43,121.26 = 17,100.12 : x
  2. Step 2: Convert to fraction form
    31,247.28/43,121.26 = 17,100.12/x
  3. Step 3: Cross multiply
    31,247.28x = 43,121.26 × 17,100.12
  4. Step 4: Simplify right side
    31,247.28x = 737,378,720.55
  5. Step 5: Solve for x
    x = 737,378,720.55/31,247.28
  6. Step 6: Final answer
    x = 23,598.17

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.