Home / 27,722.38-38,256.88-15,147.22

Finding the Fourth Proportional to 27,722.38, 38,256.88 and 15,147.22

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Solution

The fourth proportional to 27,722.38, 38,256.88 and 15,147.22 is: 20,903.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,722.38 : 38,256.88 = 15,147.22 : x
  2. Step 2: Convert to fraction form
    27,722.38/38,256.88 = 15,147.22/x
  3. Step 3: Cross multiply
    27,722.38x = 38,256.88 × 15,147.22
  4. Step 4: Simplify right side
    27,722.38x = 579,485,377.87
  5. Step 5: Solve for x
    x = 579,485,377.87/27,722.38
  6. Step 6: Final answer
    x = 20,903.16

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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.