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Finding the Fourth Proportional to 20,579.90, 30,847.62 and 10,026.62

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Solution

The fourth proportional to 20,579.90, 30,847.62 and 10,026.62 is: 15,029.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,579.90 : 30,847.62 = 10,026.62 : x
  2. Step 2: Convert to fraction form
    20,579.90/30,847.62 = 10,026.62/x
  3. Step 3: Cross multiply
    20,579.90x = 30,847.62 × 10,026.62
  4. Step 4: Simplify right side
    20,579.90x = 309,297,363.64
  5. Step 5: Solve for x
    x = 309,297,363.64/20,579.90
  6. Step 6: Final answer
    x = 15,029.10

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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.