Home / 20,142.76-30,218.84-6,102.89

Finding the Fourth Proportional to 20,142.76, 30,218.84 and 6,102.89

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Solution

The fourth proportional to 20,142.76, 30,218.84 and 6,102.89 is: 9,155.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,142.76 : 30,218.84 = 6,102.89 : x
  2. Step 2: Convert to fraction form
    20,142.76/30,218.84 = 6,102.89/x
  3. Step 3: Cross multiply
    20,142.76x = 30,218.84 × 6,102.89
  4. Step 4: Simplify right side
    20,142.76x = 184,422,225.93
  5. Step 5: Solve for x
    x = 184,422,225.93/20,142.76
  6. Step 6: Final answer
    x = 9,155.76

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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.