Home / 27,938.82-38,556.98-17,331.87

Finding the Fourth Proportional to 27,938.82, 38,556.98 and 17,331.87

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Solution

The fourth proportional to 27,938.82, 38,556.98 and 17,331.87 is: 23,918.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,938.82 : 38,556.98 = 17,331.87 : x
  2. Step 2: Convert to fraction form
    27,938.82/38,556.98 = 17,331.87/x
  3. Step 3: Cross multiply
    27,938.82x = 38,556.98 × 17,331.87
  4. Step 4: Simplify right side
    27,938.82x = 668,264,687.88
  5. Step 5: Solve for x
    x = 668,264,687.88/27,938.82
  6. Step 6: Final answer
    x = 23,918.86

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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.