Home / 40,857.96-61,290.46-11,275.80

Finding the Fourth Proportional to 40,857.96, 61,290.46 and 11,275.80

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Solution

The fourth proportional to 40,857.96, 61,290.46 and 11,275.80 is: 16,914.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,857.96 : 61,290.46 = 11,275.80 : x
  2. Step 2: Convert to fraction form
    40,857.96/61,290.46 = 11,275.80/x
  3. Step 3: Cross multiply
    40,857.96x = 61,290.46 × 11,275.80
  4. Step 4: Simplify right side
    40,857.96x = 691,098,968.87
  5. Step 5: Solve for x
    x = 691,098,968.87/40,857.96
  6. Step 6: Final answer
    x = 16,914.67

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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.