Home / 27,945.28-38,563.74-15,847.98

Finding the Fourth Proportional to 27,945.28, 38,563.74 and 15,847.98

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Solution

The fourth proportional to 27,945.28, 38,563.74 and 15,847.98 is: 21,869.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,945.28 : 38,563.74 = 15,847.98 : x
  2. Step 2: Convert to fraction form
    27,945.28/38,563.74 = 15,847.98/x
  3. Step 3: Cross multiply
    27,945.28x = 38,563.74 × 15,847.98
  4. Step 4: Simplify right side
    27,945.28x = 611,157,380.25
  5. Step 5: Solve for x
    x = 611,157,380.25/27,945.28
  6. Step 6: Final answer
    x = 21,869.79

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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.