Home / 38,934.66-53,729.19-21,940.64

Finding the Fourth Proportional to 38,934.66, 53,729.19 and 21,940.64

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Solution

The fourth proportional to 38,934.66, 53,729.19 and 21,940.64 is: 30,277.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,934.66 : 53,729.19 = 21,940.64 : x
  2. Step 2: Convert to fraction form
    38,934.66/53,729.19 = 21,940.64/x
  3. Step 3: Cross multiply
    38,934.66x = 53,729.19 × 21,940.64
  4. Step 4: Simplify right side
    38,934.66x = 1,178,852,748.12
  5. Step 5: Solve for x
    x = 1,178,852,748.12/38,934.66
  6. Step 6: Final answer
    x = 30,277.72

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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.