Home / 28,201.97-42,316.76-19,935.11

Finding the Fourth Proportional to 28,201.97, 42,316.76 and 19,935.11

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Solution

The fourth proportional to 28,201.97, 42,316.76 and 19,935.11 is: 29,912.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,201.97 : 42,316.76 = 19,935.11 : x
  2. Step 2: Convert to fraction form
    28,201.97/42,316.76 = 19,935.11/x
  3. Step 3: Cross multiply
    28,201.97x = 42,316.76 × 19,935.11
  4. Step 4: Simplify right side
    28,201.97x = 843,589,421.07
  5. Step 5: Solve for x
    x = 843,589,421.07/28,201.97
  6. Step 6: Final answer
    x = 29,912.43

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.