Home / 31,197.81-43,040.10-22,681.27

Finding the Fourth Proportional to 31,197.81, 43,040.10 and 22,681.27

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Solution

The fourth proportional to 31,197.81, 43,040.10 and 22,681.27 is: 31,290.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,197.81 : 43,040.10 = 22,681.27 : x
  2. Step 2: Convert to fraction form
    31,197.81/43,040.10 = 22,681.27/x
  3. Step 3: Cross multiply
    31,197.81x = 43,040.10 × 22,681.27
  4. Step 4: Simplify right side
    31,197.81x = 976,204,128.93
  5. Step 5: Solve for x
    x = 976,204,128.93/31,197.81
  6. Step 6: Final answer
    x = 31,290.79

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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.