Home / 20,104.90-27,742.53-11,150.16

Finding the Fourth Proportional to 20,104.90, 27,742.53 and 11,150.16

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Solution

The fourth proportional to 20,104.90, 27,742.53 and 11,150.16 is: 15,385.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,104.90 : 27,742.53 = 11,150.16 : x
  2. Step 2: Convert to fraction form
    20,104.90/27,742.53 = 11,150.16/x
  3. Step 3: Cross multiply
    20,104.90x = 27,742.53 × 11,150.16
  4. Step 4: Simplify right side
    20,104.90x = 309,333,679.42
  5. Step 5: Solve for x
    x = 309,333,679.42/20,104.90
  6. Step 6: Final answer
    x = 15,385.98

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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.