Home / 40,816.20-61,220.70-11,231.40

Finding the Fourth Proportional to 40,816.20, 61,220.70 and 11,231.40

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Solution

The fourth proportional to 40,816.20, 61,220.70 and 11,231.40 is: 16,846.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,816.20 : 61,220.70 = 11,231.40 : x
  2. Step 2: Convert to fraction form
    40,816.20/61,220.70 = 11,231.40/x
  3. Step 3: Cross multiply
    40,816.20x = 61,220.70 × 11,231.40
  4. Step 4: Simplify right side
    40,816.20x = 687,594,169.98
  5. Step 5: Solve for x
    x = 687,594,169.98/40,816.20
  6. Step 6: Final answer
    x = 16,846.11

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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.