Home / 27,660.32-38,174.72-15,561.42

Finding the Fourth Proportional to 27,660.32, 38,174.72 and 15,561.42

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Solution

The fourth proportional to 27,660.32, 38,174.72 and 15,561.42 is: 21,476.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,660.32 : 38,174.72 = 15,561.42 : x
  2. Step 2: Convert to fraction form
    27,660.32/38,174.72 = 15,561.42/x
  3. Step 3: Cross multiply
    27,660.32x = 38,174.72 × 15,561.42
  4. Step 4: Simplify right side
    27,660.32x = 594,052,851.30
  5. Step 5: Solve for x
    x = 594,052,851.30/27,660.32
  6. Step 6: Final answer
    x = 21,476.72

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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.