Home / 43,335.18-65,005.20-12,168

Finding the Fourth Proportional to 43,335.18, 65,005.20 and 12,168

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Solution

The fourth proportional to 43,335.18, 65,005.20 and 12,168 is: 18,252.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,335.18 : 65,005.20 = 12,168 : x
  2. Step 2: Convert to fraction form
    43,335.18/65,005.20 = 12,168/x
  3. Step 3: Cross multiply
    43,335.18x = 65,005.20 × 12,168
  4. Step 4: Simplify right side
    43,335.18x = 790,983,273.60
  5. Step 5: Solve for x
    x = 790,983,273.60/43,335.18
  6. Step 6: Final answer
    x = 18,252.68

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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.