Home / 20,261.10-30,385.08-6,748.68

Finding the Fourth Proportional to 20,261.10, 30,385.08 and 6,748.68

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Solution

The fourth proportional to 20,261.10, 30,385.08 and 6,748.68 is: 10,120.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,261.10 : 30,385.08 = 6,748.68 : x
  2. Step 2: Convert to fraction form
    20,261.10/30,385.08 = 6,748.68/x
  3. Step 3: Cross multiply
    20,261.10x = 30,385.08 × 6,748.68
  4. Step 4: Simplify right side
    20,261.10x = 205,059,029.77
  5. Step 5: Solve for x
    x = 205,059,029.77/20,261.10
  6. Step 6: Final answer
    x = 10,120.83

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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.