Home / 27,945.81-41,939.37-20,569.95

Finding the Fourth Proportional to 27,945.81, 41,939.37 and 20,569.95

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Solution

The fourth proportional to 27,945.81, 41,939.37 and 20,569.95 is: 30,870.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,945.81 : 41,939.37 = 20,569.95 : x
  2. Step 2: Convert to fraction form
    27,945.81/41,939.37 = 20,569.95/x
  3. Step 3: Cross multiply
    27,945.81x = 41,939.37 × 20,569.95
  4. Step 4: Simplify right side
    27,945.81x = 862,690,743.93
  5. Step 5: Solve for x
    x = 862,690,743.93/27,945.81
  6. Step 6: Final answer
    x = 30,870.13

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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.