Home / 27,867.28-38,455.32-15,291.04

Finding the Fourth Proportional to 27,867.28, 38,455.32 and 15,291.04

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Solution

The fourth proportional to 27,867.28, 38,455.32 and 15,291.04 is: 21,100.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,867.28 : 38,455.32 = 15,291.04 : x
  2. Step 2: Convert to fraction form
    27,867.28/38,455.32 = 15,291.04/x
  3. Step 3: Cross multiply
    27,867.28x = 38,455.32 × 15,291.04
  4. Step 4: Simplify right side
    27,867.28x = 588,021,836.33
  5. Step 5: Solve for x
    x = 588,021,836.33/27,867.28
  6. Step 6: Final answer
    x = 21,100.80

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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.