Home / 27,860.64-38,447.30-15,923.72

Finding the Fourth Proportional to 27,860.64, 38,447.30 and 15,923.72

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Solution

The fourth proportional to 27,860.64, 38,447.30 and 15,923.72 is: 21,974.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,860.64 : 38,447.30 = 15,923.72 : x
  2. Step 2: Convert to fraction form
    27,860.64/38,447.30 = 15,923.72/x
  3. Step 3: Cross multiply
    27,860.64x = 38,447.30 × 15,923.72
  4. Step 4: Simplify right side
    27,860.64x = 612,224,039.96
  5. Step 5: Solve for x
    x = 612,224,039.96/27,860.64
  6. Step 6: Final answer
    x = 21,974.51

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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.