Home / 43,405.44-65,113.37-15,319.70

Finding the Fourth Proportional to 43,405.44, 65,113.37 and 15,319.70

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Solution

The fourth proportional to 43,405.44, 65,113.37 and 15,319.70 is: 22,981.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,405.44 : 65,113.37 = 15,319.70 : x
  2. Step 2: Convert to fraction form
    43,405.44/65,113.37 = 15,319.70/x
  3. Step 3: Cross multiply
    43,405.44x = 65,113.37 × 15,319.70
  4. Step 4: Simplify right side
    43,405.44x = 997,517,294.39
  5. Step 5: Solve for x
    x = 997,517,294.39/43,405.44
  6. Step 6: Final answer
    x = 22,981.39

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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.