Home / 20,170.46-30,268.02-11,866.70

Finding the Fourth Proportional to 20,170.46, 30,268.02 and 11,866.70

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Solution

The fourth proportional to 20,170.46, 30,268.02 and 11,866.70 is: 17,807.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,170.46 : 30,268.02 = 11,866.70 : x
  2. Step 2: Convert to fraction form
    20,170.46/30,268.02 = 11,866.70/x
  3. Step 3: Cross multiply
    20,170.46x = 30,268.02 × 11,866.70
  4. Step 4: Simplify right side
    20,170.46x = 359,181,512.93
  5. Step 5: Solve for x
    x = 359,181,512.93/20,170.46
  6. Step 6: Final answer
    x = 17,807.30

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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.