Home / 43,286.45-64,931.70-13,706.60

Finding the Fourth Proportional to 43,286.45, 64,931.70 and 13,706.60

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Solution

The fourth proportional to 43,286.45, 64,931.70 and 13,706.60 is: 20,560.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,286.45 : 64,931.70 = 13,706.60 : x
  2. Step 2: Convert to fraction form
    43,286.45/64,931.70 = 13,706.60/x
  3. Step 3: Cross multiply
    43,286.45x = 64,931.70 × 13,706.60
  4. Step 4: Simplify right side
    43,286.45x = 889,992,839.22
  5. Step 5: Solve for x
    x = 889,992,839.22/43,286.45
  6. Step 6: Final answer
    x = 20,560.54

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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.