Home / 27,821.07-41,641.29-20,423.88

Finding the Fourth Proportional to 27,821.07, 41,641.29 and 20,423.88

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Solution

The fourth proportional to 27,821.07, 41,641.29 and 20,423.88 is: 30,569.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,821.07 : 41,641.29 = 20,423.88 : x
  2. Step 2: Convert to fraction form
    27,821.07/41,641.29 = 20,423.88/x
  3. Step 3: Cross multiply
    27,821.07x = 41,641.29 × 20,423.88
  4. Step 4: Simplify right side
    27,821.07x = 850,476,710.01
  5. Step 5: Solve for x
    x = 850,476,710.01/27,821.07
  6. Step 6: Final answer
    x = 30,569.52

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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.