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Finding the Fourth Proportional to 20,044.62, 30,070.62 and 8,358.84

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Solution

The fourth proportional to 20,044.62, 30,070.62 and 8,358.84 is: 12,539.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,044.62 : 30,070.62 = 8,358.84 : x
  2. Step 2: Convert to fraction form
    20,044.62/30,070.62 = 8,358.84/x
  3. Step 3: Cross multiply
    20,044.62x = 30,070.62 × 8,358.84
  4. Step 4: Simplify right side
    20,044.62x = 251,355,501.28
  5. Step 5: Solve for x
    x = 251,355,501.28/20,044.62
  6. Step 6: Final answer
    x = 12,539.80

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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.