Home / 20,006.20-27,607.81-11,053.51

Finding the Fourth Proportional to 20,006.20, 27,607.81 and 11,053.51

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Solution

The fourth proportional to 20,006.20, 27,607.81 and 11,053.51 is: 15,253.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,006.20 : 27,607.81 = 11,053.51 : x
  2. Step 2: Convert to fraction form
    20,006.20/27,607.81 = 11,053.51/x
  3. Step 3: Cross multiply
    20,006.20x = 27,607.81 × 11,053.51
  4. Step 4: Simplify right side
    20,006.20x = 305,163,010.61
  5. Step 5: Solve for x
    x = 305,163,010.61/20,006.20
  6. Step 6: Final answer
    x = 15,253.43

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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.