Home / 29,405.12-40,580.88-16,829.60

Finding the Fourth Proportional to 29,405.12, 40,580.88 and 16,829.60

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Solution

The fourth proportional to 29,405.12, 40,580.88 and 16,829.60 is: 23,225.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,405.12 : 40,580.88 = 16,829.60 : x
  2. Step 2: Convert to fraction form
    29,405.12/40,580.88 = 16,829.60/x
  3. Step 3: Cross multiply
    29,405.12x = 40,580.88 × 16,829.60
  4. Step 4: Simplify right side
    29,405.12x = 682,959,978.05
  5. Step 5: Solve for x
    x = 682,959,978.05/29,405.12
  6. Step 6: Final answer
    x = 23,225.89

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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.