Home / 31,505.92-43,458.94-18,750.54

Finding the Fourth Proportional to 31,505.92, 43,458.94 and 18,750.54

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Solution

The fourth proportional to 31,505.92, 43,458.94 and 18,750.54 is: 25,864.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,505.92 : 43,458.94 = 18,750.54 : x
  2. Step 2: Convert to fraction form
    31,505.92/43,458.94 = 18,750.54/x
  3. Step 3: Cross multiply
    31,505.92x = 43,458.94 × 18,750.54
  4. Step 4: Simplify right side
    31,505.92x = 814,878,592.83
  5. Step 5: Solve for x
    x = 814,878,592.83/31,505.92
  6. Step 6: Final answer
    x = 25,864.30

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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.