Home / 31,750.48-43,815.03-18,321.39

Finding the Fourth Proportional to 31,750.48, 43,815.03 and 18,321.39

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Solution

The fourth proportional to 31,750.48, 43,815.03 and 18,321.39 is: 25,283.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,750.48 : 43,815.03 = 18,321.39 : x
  2. Step 2: Convert to fraction form
    31,750.48/43,815.03 = 18,321.39/x
  3. Step 3: Cross multiply
    31,750.48x = 43,815.03 × 18,321.39
  4. Step 4: Simplify right side
    31,750.48x = 802,752,183.79
  5. Step 5: Solve for x
    x = 802,752,183.79/31,750.48
  6. Step 6: Final answer
    x = 25,283.15

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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.