Home / 27,722.25-38,257.65-15,147.81

Finding the Fourth Proportional to 27,722.25, 38,257.65 and 15,147.81

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Solution

The fourth proportional to 27,722.25, 38,257.65 and 15,147.81 is: 20,904.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,722.25 : 38,257.65 = 15,147.81 : x
  2. Step 2: Convert to fraction form
    27,722.25/38,257.65 = 15,147.81/x
  3. Step 3: Cross multiply
    27,722.25x = 38,257.65 × 15,147.81
  4. Step 4: Simplify right side
    27,722.25x = 579,519,613.25
  5. Step 5: Solve for x
    x = 579,519,613.25/27,722.25
  6. Step 6: Final answer
    x = 20,904.49

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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.