Home / 20,180.12-30,268.95-9,657.62

Finding the Fourth Proportional to 20,180.12, 30,268.95 and 9,657.62

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Solution

The fourth proportional to 20,180.12, 30,268.95 and 9,657.62 is: 14,485.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,180.12 : 30,268.95 = 9,657.62 : x
  2. Step 2: Convert to fraction form
    20,180.12/30,268.95 = 9,657.62/x
  3. Step 3: Cross multiply
    20,180.12x = 30,268.95 × 9,657.62
  4. Step 4: Simplify right side
    20,180.12x = 292,326,016.90
  5. Step 5: Solve for x
    x = 292,326,016.90/20,180.12
  6. Step 6: Final answer
    x = 14,485.84

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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.