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Finding the Fourth Proportional to 20,147.60, 30,192.60 and 14,841.20

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Solution

The fourth proportional to 20,147.60, 30,192.60 and 14,841.20 is: 22,240.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,147.60 : 30,192.60 = 14,841.20 : x
  2. Step 2: Convert to fraction form
    20,147.60/30,192.60 = 14,841.20/x
  3. Step 3: Cross multiply
    20,147.60x = 30,192.60 × 14,841.20
  4. Step 4: Simplify right side
    20,147.60x = 448,094,415.12
  5. Step 5: Solve for x
    x = 448,094,415.12/20,147.60
  6. Step 6: Final answer
    x = 22,240.59

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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.