Home / 19,620.12-27,072.72-11,235

Finding the Fourth Proportional to 19,620.12, 27,072.72 and 11,235

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Solution

The fourth proportional to 19,620.12, 27,072.72 and 11,235 is: 15,502.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,620.12 : 27,072.72 = 11,235 : x
  2. Step 2: Convert to fraction form
    19,620.12/27,072.72 = 11,235/x
  3. Step 3: Cross multiply
    19,620.12x = 27,072.72 × 11,235
  4. Step 4: Simplify right side
    19,620.12x = 304,162,009.20
  5. Step 5: Solve for x
    x = 304,162,009.20/19,620.12
  6. Step 6: Final answer
    x = 15,502.56

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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.