Home / 27,964.16-38,589.77-15,217.05

Finding the Fourth Proportional to 27,964.16, 38,589.77 and 15,217.05

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Solution

The fourth proportional to 27,964.16, 38,589.77 and 15,217.05 is: 20,999.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,964.16 : 38,589.77 = 15,217.05 : x
  2. Step 2: Convert to fraction form
    27,964.16/38,589.77 = 15,217.05/x
  3. Step 3: Cross multiply
    27,964.16x = 38,589.77 × 15,217.05
  4. Step 4: Simplify right side
    27,964.16x = 587,222,383.49
  5. Step 5: Solve for x
    x = 587,222,383.49/27,964.16
  6. Step 6: Final answer
    x = 20,999.11

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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.