Home / 21,406.62-32,119.08-8,268.18

Finding the Fourth Proportional to 21,406.62, 32,119.08 and 8,268.18

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Solution

The fourth proportional to 21,406.62, 32,119.08 and 8,268.18 is: 12,405.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,406.62 : 32,119.08 = 8,268.18 : x
  2. Step 2: Convert to fraction form
    21,406.62/32,119.08 = 8,268.18/x
  3. Step 3: Cross multiply
    21,406.62x = 32,119.08 × 8,268.18
  4. Step 4: Simplify right side
    21,406.62x = 265,566,334.87
  5. Step 5: Solve for x
    x = 265,566,334.87/21,406.62
  6. Step 6: Final answer
    x = 12,405.80

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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.