Home / 28,833.34-39,791.19-18,219.10

Finding the Fourth Proportional to 28,833.34, 39,791.19 and 18,219.10

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Solution

The fourth proportional to 28,833.34, 39,791.19 and 18,219.10 is: 25,143.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,833.34 : 39,791.19 = 18,219.10 : x
  2. Step 2: Convert to fraction form
    28,833.34/39,791.19 = 18,219.10/x
  3. Step 3: Cross multiply
    28,833.34x = 39,791.19 × 18,219.10
  4. Step 4: Simplify right side
    28,833.34x = 724,959,669.73
  5. Step 5: Solve for x
    x = 724,959,669.73/28,833.34
  6. Step 6: Final answer
    x = 25,143.10

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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.