Home / 20,241.04-27,931.32-11,288.02

Finding the Fourth Proportional to 20,241.04, 27,931.32 and 11,288.02

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Solution

The fourth proportional to 20,241.04, 27,931.32 and 11,288.02 is: 15,576.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,241.04 : 27,931.32 = 11,288.02 : x
  2. Step 2: Convert to fraction form
    20,241.04/27,931.32 = 11,288.02/x
  3. Step 3: Cross multiply
    20,241.04x = 27,931.32 × 11,288.02
  4. Step 4: Simplify right side
    20,241.04x = 315,289,298.79
  5. Step 5: Solve for x
    x = 315,289,298.79/20,241.04
  6. Step 6: Final answer
    x = 15,576.73

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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.