Home / 40,821.50-61,234.36-11,238.68

Finding the Fourth Proportional to 40,821.50, 61,234.36 and 11,238.68

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Solution

The fourth proportional to 40,821.50, 61,234.36 and 11,238.68 is: 16,858.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,821.50 : 61,234.36 = 11,238.68 : x
  2. Step 2: Convert to fraction form
    40,821.50/61,234.36 = 11,238.68/x
  3. Step 3: Cross multiply
    40,821.50x = 61,234.36 × 11,238.68
  4. Step 4: Simplify right side
    40,821.50x = 688,193,377.04
  5. Step 5: Solve for x
    x = 688,193,377.04/40,821.50
  6. Step 6: Final answer
    x = 16,858.60

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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.