Home / 31,824.76-43,923.92-18,394.16

Finding the Fourth Proportional to 31,824.76, 43,923.92 and 18,394.16

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Solution

The fourth proportional to 31,824.76, 43,923.92 and 18,394.16 is: 25,387.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,824.76 : 43,923.92 = 18,394.16 : x
  2. Step 2: Convert to fraction form
    31,824.76/43,923.92 = 18,394.16/x
  3. Step 3: Cross multiply
    31,824.76x = 43,923.92 × 18,394.16
  4. Step 4: Simplify right side
    31,824.76x = 807,943,612.31
  5. Step 5: Solve for x
    x = 807,943,612.31/31,824.76
  6. Step 6: Final answer
    x = 25,387.26

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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.