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Finding the Fourth Proportional to 21,585.78, 32,378.73 and 6,003.42

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Solution

The fourth proportional to 21,585.78, 32,378.73 and 6,003.42 is: 9,005.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,585.78 : 32,378.73 = 6,003.42 : x
  2. Step 2: Convert to fraction form
    21,585.78/32,378.73 = 6,003.42/x
  3. Step 3: Cross multiply
    21,585.78x = 32,378.73 × 6,003.42
  4. Step 4: Simplify right side
    21,585.78x = 194,383,115.26
  5. Step 5: Solve for x
    x = 194,383,115.26/21,585.78
  6. Step 6: Final answer
    x = 9,005.15

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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.