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Finding the Fourth Proportional to 23,889.35, 32,967.11 and 12,987.42

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Solution

The fourth proportional to 23,889.35, 32,967.11 and 12,987.42 is: 17,922.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    23,889.35 : 32,967.11 = 12,987.42 : x
  2. Step 2: Convert to fraction form
    23,889.35/32,967.11 = 12,987.42/x
  3. Step 3: Cross multiply
    23,889.35x = 32,967.11 × 12,987.42
  4. Step 4: Simplify right side
    23,889.35x = 428,157,473.98
  5. Step 5: Solve for x
    x = 428,157,473.98/23,889.35
  6. Step 6: Final answer
    x = 17,922.53

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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.