Home / 38,927.12-53,716.38-21,930.62

Finding the Fourth Proportional to 38,927.12, 53,716.38 and 21,930.62

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Solution

The fourth proportional to 38,927.12, 53,716.38 and 21,930.62 is: 30,262.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,927.12 : 53,716.38 = 21,930.62 : x
  2. Step 2: Convert to fraction form
    38,927.12/53,716.38 = 21,930.62/x
  3. Step 3: Cross multiply
    38,927.12x = 53,716.38 × 21,930.62
  4. Step 4: Simplify right side
    38,927.12x = 1,178,033,517.56
  5. Step 5: Solve for x
    x = 1,178,033,517.56/38,927.12
  6. Step 6: Final answer
    x = 30,262.54

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.