Home / 20,241.04-27,931.32-11,288.04

Finding the Fourth Proportional to 20,241.04, 27,931.32 and 11,288.04

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Solution

The fourth proportional to 20,241.04, 27,931.32 and 11,288.04 is: 15,576.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,241.04 : 27,931.32 = 11,288.04 : x
  2. Step 2: Convert to fraction form
    20,241.04/27,931.32 = 11,288.04/x
  3. Step 3: Cross multiply
    20,241.04x = 27,931.32 × 11,288.04
  4. Step 4: Simplify right side
    20,241.04x = 315,289,857.41
  5. Step 5: Solve for x
    x = 315,289,857.41/20,241.04
  6. Step 6: Final answer
    x = 15,576.76

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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.