Home / 20,140.60-30,215.10-6,101.64

Finding the Fourth Proportional to 20,140.60, 30,215.10 and 6,101.64

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Solution

The fourth proportional to 20,140.60, 30,215.10 and 6,101.64 is: 9,153.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,140.60 : 30,215.10 = 6,101.64 : x
  2. Step 2: Convert to fraction form
    20,140.60/30,215.10 = 6,101.64/x
  3. Step 3: Cross multiply
    20,140.60x = 30,215.10 × 6,101.64
  4. Step 4: Simplify right side
    20,140.60x = 184,361,662.76
  5. Step 5: Solve for x
    x = 184,361,662.76/20,140.60
  6. Step 6: Final answer
    x = 9,153.73

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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.