Home / 31,534.25-43,515.05-17,386.79

Finding the Fourth Proportional to 31,534.25, 43,515.05 and 17,386.79

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Solution

The fourth proportional to 31,534.25, 43,515.05 and 17,386.79 is: 23,992.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,534.25 : 43,515.05 = 17,386.79 : x
  2. Step 2: Convert to fraction form
    31,534.25/43,515.05 = 17,386.79/x
  3. Step 3: Cross multiply
    31,534.25x = 43,515.05 × 17,386.79
  4. Step 4: Simplify right side
    31,534.25x = 756,587,058.04
  5. Step 5: Solve for x
    x = 756,587,058.04/31,534.25
  6. Step 6: Final answer
    x = 23,992.55

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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.