Home / 27,540.07-38,005.20-15,605.68

Finding the Fourth Proportional to 27,540.07, 38,005.20 and 15,605.68

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Solution

The fourth proportional to 27,540.07, 38,005.20 and 15,605.68 is: 21,535.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,540.07 : 38,005.20 = 15,605.68 : x
  2. Step 2: Convert to fraction form
    27,540.07/38,005.20 = 15,605.68/x
  3. Step 3: Cross multiply
    27,540.07x = 38,005.20 × 15,605.68
  4. Step 4: Simplify right side
    27,540.07x = 593,096,965.78
  5. Step 5: Solve for x
    x = 593,096,965.78/27,540.07
  6. Step 6: Final answer
    x = 21,535.78

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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.