Home / 38,623.91-57,957.78-20,854.33

Finding the Fourth Proportional to 38,623.91, 57,957.78 and 20,854.33

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Solution

The fourth proportional to 38,623.91, 57,957.78 and 20,854.33 is: 31,293.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,623.91 : 57,957.78 = 20,854.33 : x
  2. Step 2: Convert to fraction form
    38,623.91/57,957.78 = 20,854.33/x
  3. Step 3: Cross multiply
    38,623.91x = 57,957.78 × 20,854.33
  4. Step 4: Simplify right side
    38,623.91x = 1,208,670,670.19
  5. Step 5: Solve for x
    x = 1,208,670,670.19/38,623.91
  6. Step 6: Final answer
    x = 31,293.33

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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.