Home / 27,947.88-38,556.90-17,874

Finding the Fourth Proportional to 27,947.88, 38,556.90 and 17,874

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Solution

The fourth proportional to 27,947.88, 38,556.90 and 17,874 is: 24,658.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,947.88 : 38,556.90 = 17,874 : x
  2. Step 2: Convert to fraction form
    27,947.88/38,556.90 = 17,874/x
  3. Step 3: Cross multiply
    27,947.88x = 38,556.90 × 17,874
  4. Step 4: Simplify right side
    27,947.88x = 689,166,030.60
  5. Step 5: Solve for x
    x = 689,166,030.60/27,947.88
  6. Step 6: Final answer
    x = 24,658.97

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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.