Home / 20,153.96-27,814.50-11,771.24

Finding the Fourth Proportional to 20,153.96, 27,814.50 and 11,771.24

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Solution

The fourth proportional to 20,153.96, 27,814.50 and 11,771.24 is: 16,245.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,153.96 : 27,814.50 = 11,771.24 : x
  2. Step 2: Convert to fraction form
    20,153.96/27,814.50 = 11,771.24/x
  3. Step 3: Cross multiply
    20,153.96x = 27,814.50 × 11,771.24
  4. Step 4: Simplify right side
    20,153.96x = 327,411,154.98
  5. Step 5: Solve for x
    x = 327,411,154.98/20,153.96
  6. Step 6: Final answer
    x = 16,245.50

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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.