Home / 19,929.14-27,502.13-10,976.61

Finding the Fourth Proportional to 19,929.14, 27,502.13 and 10,976.61

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Solution

The fourth proportional to 19,929.14, 27,502.13 and 10,976.61 is: 15,147.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,929.14 : 27,502.13 = 10,976.61 : x
  2. Step 2: Convert to fraction form
    19,929.14/27,502.13 = 10,976.61/x
  3. Step 3: Cross multiply
    19,929.14x = 27,502.13 × 10,976.61
  4. Step 4: Simplify right side
    19,929.14x = 301,880,285.75
  5. Step 5: Solve for x
    x = 301,880,285.75/19,929.14
  6. Step 6: Final answer
    x = 15,147.68

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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.