Home / 23,829.12-32,880.48-13,620

Finding the Fourth Proportional to 23,829.12, 32,880.48 and 13,620

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Solution

The fourth proportional to 23,829.12, 32,880.48 and 13,620 is: 18,793.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    23,829.12 : 32,880.48 = 13,620 : x
  2. Step 2: Convert to fraction form
    23,829.12/32,880.48 = 13,620/x
  3. Step 3: Cross multiply
    23,829.12x = 32,880.48 × 13,620
  4. Step 4: Simplify right side
    23,829.12x = 447,832,137.60
  5. Step 5: Solve for x
    x = 447,832,137.60/23,829.12
  6. Step 6: Final answer
    x = 18,793.48

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.