Home / 20,155.47-30,233.66-6,115.83

Finding the Fourth Proportional to 20,155.47, 30,233.66 and 6,115.83

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Solution

The fourth proportional to 20,155.47, 30,233.66 and 6,115.83 is: 9,173.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,155.47 : 30,233.66 = 6,115.83 : x
  2. Step 2: Convert to fraction form
    20,155.47/30,233.66 = 6,115.83/x
  3. Step 3: Cross multiply
    20,155.47x = 30,233.66 × 6,115.83
  4. Step 4: Simplify right side
    20,155.47x = 184,903,894.26
  5. Step 5: Solve for x
    x = 184,903,894.26/20,155.47
  6. Step 6: Final answer
    x = 9,173.88

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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.