Home / 19,774.38-27,288.64-10,821.88

Finding the Fourth Proportional to 19,774.38, 27,288.64 and 10,821.88

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Solution

The fourth proportional to 19,774.38, 27,288.64 and 10,821.88 is: 14,934.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,774.38 : 27,288.64 = 10,821.88 : x
  2. Step 2: Convert to fraction form
    19,774.38/27,288.64 = 10,821.88/x
  3. Step 3: Cross multiply
    19,774.38x = 27,288.64 × 10,821.88
  4. Step 4: Simplify right side
    19,774.38x = 295,314,387.44
  5. Step 5: Solve for x
    x = 295,314,387.44/19,774.38
  6. Step 6: Final answer
    x = 14,934.19

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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.