Home / 20,155.20-30,232.88-6,115.35

Finding the Fourth Proportional to 20,155.20, 30,232.88 and 6,115.35

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Solution

The fourth proportional to 20,155.20, 30,232.88 and 6,115.35 is: 9,173.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,155.20 : 30,232.88 = 6,115.35 : x
  2. Step 2: Convert to fraction form
    20,155.20/30,232.88 = 6,115.35/x
  3. Step 3: Cross multiply
    20,155.20x = 30,232.88 × 6,115.35
  4. Step 4: Simplify right side
    20,155.20x = 184,884,612.13
  5. Step 5: Solve for x
    x = 184,884,612.13/20,155.20
  6. Step 6: Final answer
    x = 9,173.05

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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.