Home / 20,816.46-31,169.21-16,268.18

Finding the Fourth Proportional to 20,816.46, 31,169.21 and 16,268.18

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Solution

The fourth proportional to 20,816.46, 31,169.21 and 16,268.18 is: 24,358.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,816.46 : 31,169.21 = 16,268.18 : x
  2. Step 2: Convert to fraction form
    20,816.46/31,169.21 = 16,268.18/x
  3. Step 3: Cross multiply
    20,816.46x = 31,169.21 × 16,268.18
  4. Step 4: Simplify right side
    20,816.46x = 507,066,081.55
  5. Step 5: Solve for x
    x = 507,066,081.55/20,816.46
  6. Step 6: Final answer
    x = 24,358.90

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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.