Home / 43,378.49-65,086.56-15,318.60

Finding the Fourth Proportional to 43,378.49, 65,086.56 and 15,318.60

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Solution

The fourth proportional to 43,378.49, 65,086.56 and 15,318.60 is: 22,984.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,378.49 : 65,086.56 = 15,318.60 : x
  2. Step 2: Convert to fraction form
    43,378.49/65,086.56 = 15,318.60/x
  3. Step 3: Cross multiply
    43,378.49x = 65,086.56 × 15,318.60
  4. Step 4: Simplify right side
    43,378.49x = 997,034,978.02
  5. Step 5: Solve for x
    x = 997,034,978.02/43,378.49
  6. Step 6: Final answer
    x = 22,984.55

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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.