Home / 20,104.04-27,742.60-11,150.75

Finding the Fourth Proportional to 20,104.04, 27,742.60 and 11,150.75

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Solution

The fourth proportional to 20,104.04, 27,742.60 and 11,150.75 is: 15,387.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,104.04 : 27,742.60 = 11,150.75 : x
  2. Step 2: Convert to fraction form
    20,104.04/27,742.60 = 11,150.75/x
  3. Step 3: Cross multiply
    20,104.04x = 27,742.60 × 11,150.75
  4. Step 4: Simplify right side
    20,104.04x = 309,350,880.24
  5. Step 5: Solve for x
    x = 309,350,880.24/20,104.04
  6. Step 6: Final answer
    x = 15,387.50

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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.