Home / 27,721.32-38,255.94-15,146.60

Finding the Fourth Proportional to 27,721.32, 38,255.94 and 15,146.60

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Solution

The fourth proportional to 27,721.32, 38,255.94 and 15,146.60 is: 20,902.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,721.32 : 38,255.94 = 15,146.60 : x
  2. Step 2: Convert to fraction form
    27,721.32/38,255.94 = 15,146.60/x
  3. Step 3: Cross multiply
    27,721.32x = 38,255.94 × 15,146.60
  4. Step 4: Simplify right side
    27,721.32x = 579,447,420.80
  5. Step 5: Solve for x
    x = 579,447,420.80/27,721.32
  6. Step 6: Final answer
    x = 20,902.59

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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.