Home / 31,285.44-43,173.41-17,856.34

Finding the Fourth Proportional to 31,285.44, 43,173.41 and 17,856.34

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Solution

The fourth proportional to 31,285.44, 43,173.41 and 17,856.34 is: 24,641.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,285.44 : 43,173.41 = 17,856.34 : x
  2. Step 2: Convert to fraction form
    31,285.44/43,173.41 = 17,856.34/x
  3. Step 3: Cross multiply
    31,285.44x = 43,173.41 × 17,856.34
  4. Step 4: Simplify right side
    31,285.44x = 770,918,890.70
  5. Step 5: Solve for x
    x = 770,918,890.70/31,285.44
  6. Step 6: Final answer
    x = 24,641.46

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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.