Home / 31,245.21-43,138.51-27,882.24

Finding the Fourth Proportional to 31,245.21, 43,138.51 and 27,882.24

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Solution

The fourth proportional to 31,245.21, 43,138.51 and 27,882.24 is: 38,495.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,245.21 : 43,138.51 = 27,882.24 : x
  2. Step 2: Convert to fraction form
    31,245.21/43,138.51 = 27,882.24/x
  3. Step 3: Cross multiply
    31,245.21x = 43,138.51 × 27,882.24
  4. Step 4: Simplify right side
    31,245.21x = 1,202,798,219.36
  5. Step 5: Solve for x
    x = 1,202,798,219.36/31,245.21
  6. Step 6: Final answer
    x = 38,495.44

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Double scale
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Similar ratio
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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.