Home / 27,721.74-38,256.12-15,146.76

Finding the Fourth Proportional to 27,721.74, 38,256.12 and 15,146.76

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Solution

The fourth proportional to 27,721.74, 38,256.12 and 15,146.76 is: 20,902.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,721.74 : 38,256.12 = 15,146.76 : x
  2. Step 2: Convert to fraction form
    27,721.74/38,256.12 = 15,146.76/x
  3. Step 3: Cross multiply
    27,721.74x = 38,256.12 × 15,146.76
  4. Step 4: Simplify right side
    27,721.74x = 579,456,268.17
  5. Step 5: Solve for x
    x = 579,456,268.17/27,721.74
  6. Step 6: Final answer
    x = 20,902.59

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Double scale
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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.