Home / 30,765.56-42,470.64-18,016.97

Finding the Fourth Proportional to 30,765.56, 42,470.64 and 18,016.97

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Solution

The fourth proportional to 30,765.56, 42,470.64 and 18,016.97 is: 24,871.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,765.56 : 42,470.64 = 18,016.97 : x
  2. Step 2: Convert to fraction form
    30,765.56/42,470.64 = 18,016.97/x
  3. Step 3: Cross multiply
    30,765.56x = 42,470.64 × 18,016.97
  4. Step 4: Simplify right side
    30,765.56x = 765,192,034.41
  5. Step 5: Solve for x
    x = 765,192,034.41/30,765.56
  6. Step 6: Final answer
    x = 24,871.71

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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.