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Finding the Fourth Proportional to 40,384.80, 60,555.60 and 16,984.80

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Solution

The fourth proportional to 40,384.80, 60,555.60 and 16,984.80 is: 25,468.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,384.80 : 60,555.60 = 16,984.80 : x
  2. Step 2: Convert to fraction form
    40,384.80/60,555.60 = 16,984.80/x
  3. Step 3: Cross multiply
    40,384.80x = 60,555.60 × 16,984.80
  4. Step 4: Simplify right side
    40,384.80x = 1,028,524,754.88
  5. Step 5: Solve for x
    x = 1,028,524,754.88/40,384.80
  6. Step 6: Final answer
    x = 25,468.12

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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.