Home / 31,244.16-43,103.04-18,661.44

Finding the Fourth Proportional to 31,244.16, 43,103.04 and 18,661.44

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Solution

The fourth proportional to 31,244.16, 43,103.04 and 18,661.44 is: 25,744.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,244.16 : 43,103.04 = 18,661.44 : x
  2. Step 2: Convert to fraction form
    31,244.16/43,103.04 = 18,661.44/x
  3. Step 3: Cross multiply
    31,244.16x = 43,103.04 × 18,661.44
  4. Step 4: Simplify right side
    31,244.16x = 804,364,794.78
  5. Step 5: Solve for x
    x = 804,364,794.78/31,244.16
  6. Step 6: Final answer
    x = 25,744.48

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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.