Home / 20,936.61-28,836.36-19,360.08

Finding the Fourth Proportional to 20,936.61, 28,836.36 and 19,360.08

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Solution

The fourth proportional to 20,936.61, 28,836.36 and 19,360.08 is: 26,664.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,936.61 : 28,836.36 = 19,360.08 : x
  2. Step 2: Convert to fraction form
    20,936.61/28,836.36 = 19,360.08/x
  3. Step 3: Cross multiply
    20,936.61x = 28,836.36 × 19,360.08
  4. Step 4: Simplify right side
    20,936.61x = 558,274,236.51
  5. Step 5: Solve for x
    x = 558,274,236.51/20,936.61
  6. Step 6: Final answer
    x = 26,664.98

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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.