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Finding the Fourth Proportional to 40,641.30, 60,967.62 and 12,563.64

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Solution

The fourth proportional to 40,641.30, 60,967.62 and 12,563.64 is: 18,847.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,641.30 : 60,967.62 = 12,563.64 : x
  2. Step 2: Convert to fraction form
    40,641.30/60,967.62 = 12,563.64/x
  3. Step 3: Cross multiply
    40,641.30x = 60,967.62 × 12,563.64
  4. Step 4: Simplify right side
    40,641.30x = 765,975,229.34
  5. Step 5: Solve for x
    x = 765,975,229.34/40,641.30
  6. Step 6: Final answer
    x = 18,847.21

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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.