Home / 31,229.95-43,093.70-18,483.69

Finding the Fourth Proportional to 31,229.95, 43,093.70 and 18,483.69

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Solution

The fourth proportional to 31,229.95, 43,093.70 and 18,483.69 is: 25,505.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,229.95 : 43,093.70 = 18,483.69 : x
  2. Step 2: Convert to fraction form
    31,229.95/43,093.70 = 18,483.69/x
  3. Step 3: Cross multiply
    31,229.95x = 43,093.70 × 18,483.69
  4. Step 4: Simplify right side
    31,229.95x = 796,530,591.75
  5. Step 5: Solve for x
    x = 796,530,591.75/31,229.95
  6. Step 6: Final answer
    x = 25,505.34

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Half scale
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Double scale
Find fourth proportional to 31,230.95, 43,095.08 and 18,484.69
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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.