Home / 19,882.95-27,439.17-11,386.59

Finding the Fourth Proportional to 19,882.95, 27,439.17 and 11,386.59

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Solution

The fourth proportional to 19,882.95, 27,439.17 and 11,386.59 is: 15,713.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,882.95 : 27,439.17 = 11,386.59 : x
  2. Step 2: Convert to fraction form
    19,882.95/27,439.17 = 11,386.59/x
  3. Step 3: Cross multiply
    19,882.95x = 27,439.17 × 11,386.59
  4. Step 4: Simplify right side
    19,882.95x = 312,438,578.73
  5. Step 5: Solve for x
    x = 312,438,578.73/19,882.95
  6. Step 6: Final answer
    x = 15,713.89

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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.