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Finding the Fourth Proportional to 20,348.32, 30,493.04 and 9,948.32

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Solution

The fourth proportional to 20,348.32, 30,493.04 and 9,948.32 is: 14,908.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,348.32 : 30,493.04 = 9,948.32 : x
  2. Step 2: Convert to fraction form
    20,348.32/30,493.04 = 9,948.32/x
  3. Step 3: Cross multiply
    20,348.32x = 30,493.04 × 9,948.32
  4. Step 4: Simplify right side
    20,348.32x = 303,354,519.69
  5. Step 5: Solve for x
    x = 303,354,519.69/20,348.32
  6. Step 6: Final answer
    x = 14,908.09

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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.