Home / 23,167.82-31,971.78-13,605.20

Finding the Fourth Proportional to 23,167.82, 31,971.78 and 13,605.20

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Solution

The fourth proportional to 23,167.82, 31,971.78 and 13,605.20 is: 18,775.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    23,167.82 : 31,971.78 = 13,605.20 : x
  2. Step 2: Convert to fraction form
    23,167.82/31,971.78 = 13,605.20/x
  3. Step 3: Cross multiply
    23,167.82x = 31,971.78 × 13,605.20
  4. Step 4: Simplify right side
    23,167.82x = 434,982,461.26
  5. Step 5: Solve for x
    x = 434,982,461.26/23,167.82
  6. Step 6: Final answer
    x = 18,775.29

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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.