Home / 19,910.66-27,476.81-10,959.06

Finding the Fourth Proportional to 19,910.66, 27,476.81 and 10,959.06

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Solution

The fourth proportional to 19,910.66, 27,476.81 and 10,959.06 is: 15,123.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,910.66 : 27,476.81 = 10,959.06 : x
  2. Step 2: Convert to fraction form
    19,910.66/27,476.81 = 10,959.06/x
  3. Step 3: Cross multiply
    19,910.66x = 27,476.81 × 10,959.06
  4. Step 4: Simplify right side
    19,910.66x = 301,120,009.40
  5. Step 5: Solve for x
    x = 301,120,009.40/19,910.66
  6. Step 6: Final answer
    x = 15,123.56

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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.