Home / 19,882.18-27,435.81-10,929.46

Finding the Fourth Proportional to 19,882.18, 27,435.81 and 10,929.46

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Solution

The fourth proportional to 19,882.18, 27,435.81 and 10,929.46 is: 15,081.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,882.18 : 27,435.81 = 10,929.46 : x
  2. Step 2: Convert to fraction form
    19,882.18/27,435.81 = 10,929.46/x
  3. Step 3: Cross multiply
    19,882.18x = 27,435.81 × 10,929.46
  4. Step 4: Simplify right side
    19,882.18x = 299,858,587.96
  5. Step 5: Solve for x
    x = 299,858,587.96/19,882.18
  6. Step 6: Final answer
    x = 15,081.78

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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.