Home / 68,847.12-103,269.40-18,927

Finding the Fourth Proportional to 68,847.12, 103,269.40 and 18,927

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Solution

The fourth proportional to 68,847.12, 103,269.40 and 18,927 is: 28,390.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,847.12 : 103,269.40 = 18,927 : x
  2. Step 2: Convert to fraction form
    68,847.12/103,269.40 = 18,927/x
  3. Step 3: Cross multiply
    68,847.12x = 103,269.40 × 18,927
  4. Step 4: Simplify right side
    68,847.12x = 1,954,579,933.80
  5. Step 5: Solve for x
    x = 1,954,579,933.80/68,847.12
  6. Step 6: Final answer
    x = 28,390.15

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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.