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Finding the Fourth Proportional to 40,282.80, 60,445.80 and 16,911.60

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Solution

The fourth proportional to 40,282.80, 60,445.80 and 16,911.60 is: 25,376.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,282.80 : 60,445.80 = 16,911.60 : x
  2. Step 2: Convert to fraction form
    40,282.80/60,445.80 = 16,911.60/x
  3. Step 3: Cross multiply
    40,282.80x = 60,445.80 × 16,911.60
  4. Step 4: Simplify right side
    40,282.80x = 1,022,235,191.28
  5. Step 5: Solve for x
    x = 1,022,235,191.28/40,282.80
  6. Step 6: Final answer
    x = 25,376.47

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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.