Home / 31,729.34-43,791.08-18,297.92

Finding the Fourth Proportional to 31,729.34, 43,791.08 and 18,297.92

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Solution

The fourth proportional to 31,729.34, 43,791.08 and 18,297.92 is: 25,253.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,729.34 : 43,791.08 = 18,297.92 : x
  2. Step 2: Convert to fraction form
    31,729.34/43,791.08 = 18,297.92/x
  3. Step 3: Cross multiply
    31,729.34x = 43,791.08 × 18,297.92
  4. Step 4: Simplify right side
    31,729.34x = 801,285,368.11
  5. Step 5: Solve for x
    x = 801,285,368.11/31,729.34
  6. Step 6: Final answer
    x = 25,253.77

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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.