Home / 38,639.57-57,864.31-18,854.33

Finding the Fourth Proportional to 38,639.57, 57,864.31 and 18,854.33

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Solution

The fourth proportional to 38,639.57, 57,864.31 and 18,854.33 is: 28,235.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,639.57 : 57,864.31 = 18,854.33 : x
  2. Step 2: Convert to fraction form
    38,639.57/57,864.31 = 18,854.33/x
  3. Step 3: Cross multiply
    38,639.57x = 57,864.31 × 18,854.33
  4. Step 4: Simplify right side
    38,639.57x = 1,090,992,459.50
  5. Step 5: Solve for x
    x = 1,090,992,459.50/38,639.57
  6. Step 6: Final answer
    x = 28,235.11

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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.