Home / 38,458.56-53,072.84-21,691.60

Finding the Fourth Proportional to 38,458.56, 53,072.84 and 21,691.60

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Solution

The fourth proportional to 38,458.56, 53,072.84 and 21,691.60 is: 29,934.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,458.56 : 53,072.84 = 21,691.60 : x
  2. Step 2: Convert to fraction form
    38,458.56/53,072.84 = 21,691.60/x
  3. Step 3: Cross multiply
    38,458.56x = 53,072.84 × 21,691.60
  4. Step 4: Simplify right side
    38,458.56x = 1,151,234,816.14
  5. Step 5: Solve for x
    x = 1,151,234,816.14/38,458.56
  6. Step 6: Final answer
    x = 29,934.42

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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.