Home / 27,752.32-38,329.78-18,661.88

Finding the Fourth Proportional to 27,752.32, 38,329.78 and 18,661.88

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Solution

The fourth proportional to 27,752.32, 38,329.78 and 18,661.88 is: 25,774.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,752.32 : 38,329.78 = 18,661.88 : x
  2. Step 2: Convert to fraction form
    27,752.32/38,329.78 = 18,661.88/x
  3. Step 3: Cross multiply
    27,752.32x = 38,329.78 × 18,661.88
  4. Step 4: Simplify right side
    27,752.32x = 715,305,754.79
  5. Step 5: Solve for x
    x = 715,305,754.79/27,752.32
  6. Step 6: Final answer
    x = 25,774.63

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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.