Home / 43,469.76-65,180.16-13,880.64

Finding the Fourth Proportional to 43,469.76, 65,180.16 and 13,880.64

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Solution

The fourth proportional to 43,469.76, 65,180.16 and 13,880.64 is: 20,813.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,469.76 : 65,180.16 = 13,880.64 : x
  2. Step 2: Convert to fraction form
    43,469.76/65,180.16 = 13,880.64/x
  3. Step 3: Cross multiply
    43,469.76x = 65,180.16 × 13,880.64
  4. Step 4: Simplify right side
    43,469.76x = 904,742,336.10
  5. Step 5: Solve for x
    x = 904,742,336.10/43,469.76
  6. Step 6: Final answer
    x = 20,813.14

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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.