Home / 27,867.03-38,455.34-15,290.97

Finding the Fourth Proportional to 27,867.03, 38,455.34 and 15,290.97

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Solution

The fourth proportional to 27,867.03, 38,455.34 and 15,290.97 is: 21,100.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,867.03 : 38,455.34 = 15,290.97 : x
  2. Step 2: Convert to fraction form
    27,867.03/38,455.34 = 15,290.97/x
  3. Step 3: Cross multiply
    27,867.03x = 38,455.34 × 15,290.97
  4. Step 4: Simplify right side
    27,867.03x = 588,019,373.82
  5. Step 5: Solve for x
    x = 588,019,373.82/27,867.03
  6. Step 6: Final answer
    x = 21,100.90

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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.