Home / 31,198.32-43,040.79-22,681.77

Finding the Fourth Proportional to 31,198.32, 43,040.79 and 22,681.77

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Solution

The fourth proportional to 31,198.32, 43,040.79 and 22,681.77 is: 31,291.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,198.32 : 43,040.79 = 22,681.77 : x
  2. Step 2: Convert to fraction form
    31,198.32/43,040.79 = 22,681.77/x
  3. Step 3: Cross multiply
    31,198.32x = 43,040.79 × 22,681.77
  4. Step 4: Simplify right side
    31,198.32x = 976,241,299.40
  5. Step 5: Solve for x
    x = 976,241,299.40/31,198.32
  6. Step 6: Final answer
    x = 31,291.47

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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.