Home / 31,681.74-43,730.54-18,261.97

Finding the Fourth Proportional to 31,681.74, 43,730.54 and 18,261.97

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Solution

The fourth proportional to 31,681.74, 43,730.54 and 18,261.97 is: 25,207.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,681.74 : 43,730.54 = 18,261.97 : x
  2. Step 2: Convert to fraction form
    31,681.74/43,730.54 = 18,261.97/x
  3. Step 3: Cross multiply
    31,681.74x = 43,730.54 × 18,261.97
  4. Step 4: Simplify right side
    31,681.74x = 798,605,745.89
  5. Step 5: Solve for x
    x = 798,605,745.89/31,681.74
  6. Step 6: Final answer
    x = 25,207.13

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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.