Home / 27,721.68-38,256.48-15,147.24

Finding the Fourth Proportional to 27,721.68, 38,256.48 and 15,147.24

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Solution

The fourth proportional to 27,721.68, 38,256.48 and 15,147.24 is: 20,903.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,721.68 : 38,256.48 = 15,147.24 : x
  2. Step 2: Convert to fraction form
    27,721.68/38,256.48 = 15,147.24/x
  3. Step 3: Cross multiply
    27,721.68x = 38,256.48 × 15,147.24
  4. Step 4: Simplify right side
    27,721.68x = 579,480,084.12
  5. Step 5: Solve for x
    x = 579,480,084.12/27,721.68
  6. Step 6: Final answer
    x = 20,903.50

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Double scale
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Similar ratio
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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.