Home / 20,214.04-30,297.20-9,107.68

Finding the Fourth Proportional to 20,214.04, 30,297.20 and 9,107.68

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Solution

The fourth proportional to 20,214.04, 30,297.20 and 9,107.68 is: 13,650.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,214.04 : 30,297.20 = 9,107.68 : x
  2. Step 2: Convert to fraction form
    20,214.04/30,297.20 = 9,107.68/x
  3. Step 3: Cross multiply
    20,214.04x = 30,297.20 × 9,107.68
  4. Step 4: Simplify right side
    20,214.04x = 275,937,202.50
  5. Step 5: Solve for x
    x = 275,937,202.50/20,214.04
  6. Step 6: Final answer
    x = 13,650.77

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Half scale
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Double scale
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Similar ratio
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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.