Home / 20,191.81-27,771.96-16,204.18

Finding the Fourth Proportional to 20,191.81, 27,771.96 and 16,204.18

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Solution

The fourth proportional to 20,191.81, 27,771.96 and 16,204.18 is: 22,287.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,191.81 : 27,771.96 = 16,204.18 : x
  2. Step 2: Convert to fraction form
    20,191.81/27,771.96 = 16,204.18/x
  3. Step 3: Cross multiply
    20,191.81x = 27,771.96 × 16,204.18
  4. Step 4: Simplify right side
    20,191.81x = 450,021,838.79
  5. Step 5: Solve for x
    x = 450,021,838.79/20,191.81
  6. Step 6: Final answer
    x = 22,287.35

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.