Home / 27,722.58-38,257.28-15,147.33

Finding the Fourth Proportional to 27,722.58, 38,257.28 and 15,147.33

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Solution

The fourth proportional to 27,722.58, 38,257.28 and 15,147.33 is: 20,903.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,722.58 : 38,257.28 = 15,147.33 : x
  2. Step 2: Convert to fraction form
    27,722.58/38,257.28 = 15,147.33/x
  3. Step 3: Cross multiply
    27,722.58x = 38,257.28 × 15,147.33
  4. Step 4: Simplify right side
    27,722.58x = 579,495,645.06
  5. Step 5: Solve for x
    x = 579,495,645.06/27,722.58
  6. Step 6: Final answer
    x = 20,903.38

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Double scale
Find fourth proportional to 27,723.58, 38,258.66 and 15,148.33
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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.