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Finding the Fourth Proportional to 40,219.80, 60,300.90 and 16,834.20

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Solution

The fourth proportional to 40,219.80, 60,300.90 and 16,834.20 is: 25,239.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,219.80 : 60,300.90 = 16,834.20 : x
  2. Step 2: Convert to fraction form
    40,219.80/60,300.90 = 16,834.20/x
  3. Step 3: Cross multiply
    40,219.80x = 60,300.90 × 16,834.20
  4. Step 4: Simplify right side
    40,219.80x = 1,015,117,410.78
  5. Step 5: Solve for x
    x = 1,015,117,410.78/40,219.80
  6. Step 6: Final answer
    x = 25,239.25

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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.