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Finding the Fourth Proportional to 19,090.73, 28,640.97 and 5,943.20

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Solution

The fourth proportional to 19,090.73, 28,640.97 and 5,943.20 is: 8,916.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,090.73 : 28,640.97 = 5,943.20 : x
  2. Step 2: Convert to fraction form
    19,090.73/28,640.97 = 5,943.20/x
  3. Step 3: Cross multiply
    19,090.73x = 28,640.97 × 5,943.20
  4. Step 4: Simplify right side
    19,090.73x = 170,219,012.90
  5. Step 5: Solve for x
    x = 170,219,012.90/19,090.73
  6. Step 6: Final answer
    x = 8,916.32

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1.5x scale

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.