Home / 31,427.68-43,368.60-17,998.24

Finding the Fourth Proportional to 31,427.68, 43,368.60 and 17,998.24

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Solution

The fourth proportional to 31,427.68, 43,368.60 and 17,998.24 is: 24,836.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,427.68 : 43,368.60 = 17,998.24 : x
  2. Step 2: Convert to fraction form
    31,427.68/43,368.60 = 17,998.24/x
  3. Step 3: Cross multiply
    31,427.68x = 43,368.60 × 17,998.24
  4. Step 4: Simplify right side
    31,427.68x = 780,558,471.26
  5. Step 5: Solve for x
    x = 780,558,471.26/31,427.68
  6. Step 6: Final answer
    x = 24,836.66

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Half scale
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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.