Home / 31,458.28-43,412.26-17,310.76

Finding the Fourth Proportional to 31,458.28, 43,412.26 and 17,310.76

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Solution

The fourth proportional to 31,458.28, 43,412.26 and 17,310.76 is: 23,888.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,458.28 : 43,412.26 = 17,310.76 : x
  2. Step 2: Convert to fraction form
    31,458.28/43,412.26 = 17,310.76/x
  3. Step 3: Cross multiply
    31,458.28x = 43,412.26 × 17,310.76
  4. Step 4: Simplify right side
    31,458.28x = 751,499,213.92
  5. Step 5: Solve for x
    x = 751,499,213.92/31,458.28
  6. Step 6: Final answer
    x = 23,888.76

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Half scale
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Double scale
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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.