Home / 27,721.58-38,255.90-15,146.33

Finding the Fourth Proportional to 27,721.58, 38,255.90 and 15,146.33

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Solution

The fourth proportional to 27,721.58, 38,255.90 and 15,146.33 is: 20,901.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,721.58 : 38,255.90 = 15,146.33 : x
  2. Step 2: Convert to fraction form
    27,721.58/38,255.90 = 15,146.33/x
  3. Step 3: Cross multiply
    27,721.58x = 38,255.90 × 15,146.33
  4. Step 4: Simplify right side
    27,721.58x = 579,436,218.84
  5. Step 5: Solve for x
    x = 579,436,218.84/27,721.58
  6. Step 6: Final answer
    x = 20,901.99

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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.