Home / 20,821.99-31,232.78-6,030.78

Finding the Fourth Proportional to 20,821.99, 31,232.78 and 6,030.78

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Solution

The fourth proportional to 20,821.99, 31,232.78 and 6,030.78 is: 9,046.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,821.99 : 31,232.78 = 6,030.78 : x
  2. Step 2: Convert to fraction form
    20,821.99/31,232.78 = 6,030.78/x
  3. Step 3: Cross multiply
    20,821.99x = 31,232.78 × 6,030.78
  4. Step 4: Simplify right side
    20,821.99x = 188,358,024.97
  5. Step 5: Solve for x
    x = 188,358,024.97/20,821.99
  6. Step 6: Final answer
    x = 9,046.11

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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.