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Finding the Fourth Proportional to 38,539.44, 57,816.96 and 21,907.44

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Solution

The fourth proportional to 38,539.44, 57,816.96 and 21,907.44 is: 32,865.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,539.44 : 57,816.96 = 21,907.44 : x
  2. Step 2: Convert to fraction form
    38,539.44/57,816.96 = 21,907.44/x
  3. Step 3: Cross multiply
    38,539.44x = 57,816.96 × 21,907.44
  4. Step 4: Simplify right side
    38,539.44x = 1,266,621,582.18
  5. Step 5: Solve for x
    x = 1,266,621,582.18/38,539.44
  6. Step 6: Final answer
    x = 32,865.59

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1.5x scale

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.