Home / 20,148.60-30,221.64-6,108.60

Finding the Fourth Proportional to 20,148.60, 30,221.64 and 6,108.60

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Solution

The fourth proportional to 20,148.60, 30,221.64 and 6,108.60 is: 9,162.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,148.60 : 30,221.64 = 6,108.60 : x
  2. Step 2: Convert to fraction form
    20,148.60/30,221.64 = 6,108.60/x
  3. Step 3: Cross multiply
    20,148.60x = 30,221.64 × 6,108.60
  4. Step 4: Simplify right side
    20,148.60x = 184,611,910.10
  5. Step 5: Solve for x
    x = 184,611,910.10/20,148.60
  6. Step 6: Final answer
    x = 9,162.52

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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.