Home / 19,276.46-28,916.14-8,181.90

Finding the Fourth Proportional to 19,276.46, 28,916.14 and 8,181.90

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Solution

The fourth proportional to 19,276.46, 28,916.14 and 8,181.90 is: 12,273.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,276.46 : 28,916.14 = 8,181.90 : x
  2. Step 2: Convert to fraction form
    19,276.46/28,916.14 = 8,181.90/x
  3. Step 3: Cross multiply
    19,276.46x = 28,916.14 × 8,181.90
  4. Step 4: Simplify right side
    19,276.46x = 236,588,965.87
  5. Step 5: Solve for x
    x = 236,588,965.87/19,276.46
  6. Step 6: Final answer
    x = 12,273.47

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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.