Home / 43,620.48-65,439.36-15,920.64

Finding the Fourth Proportional to 43,620.48, 65,439.36 and 15,920.64

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Solution

The fourth proportional to 43,620.48, 65,439.36 and 15,920.64 is: 23,884.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,620.48 : 65,439.36 = 15,920.64 : x
  2. Step 2: Convert to fraction form
    43,620.48/65,439.36 = 15,920.64/x
  3. Step 3: Cross multiply
    43,620.48x = 65,439.36 × 15,920.64
  4. Step 4: Simplify right side
    43,620.48x = 1,041,836,492.39
  5. Step 5: Solve for x
    x = 1,041,836,492.39/43,620.48
  6. Step 6: Final answer
    x = 23,884.11

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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.