Home / 19,937.47-27,511.81-11,440.29

Finding the Fourth Proportional to 19,937.47, 27,511.81 and 11,440.29

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Solution

The fourth proportional to 19,937.47, 27,511.81 and 11,440.29 is: 15,786.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,937.47 : 27,511.81 = 11,440.29 : x
  2. Step 2: Convert to fraction form
    19,937.47/27,511.81 = 11,440.29/x
  3. Step 3: Cross multiply
    19,937.47x = 27,511.81 × 11,440.29
  4. Step 4: Simplify right side
    19,937.47x = 314,743,084.82
  5. Step 5: Solve for x
    x = 314,743,084.82/19,937.47
  6. Step 6: Final answer
    x = 15,786.51

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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.