Home / 20,104.21-27,741.84-11,151.52

Finding the Fourth Proportional to 20,104.21, 27,741.84 and 11,151.52

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Solution

The fourth proportional to 20,104.21, 27,741.84 and 11,151.52 is: 15,388.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,104.21 : 27,741.84 = 11,151.52 : x
  2. Step 2: Convert to fraction form
    20,104.21/27,741.84 = 11,151.52/x
  3. Step 3: Cross multiply
    20,104.21x = 27,741.84 × 11,151.52
  4. Step 4: Simplify right side
    20,104.21x = 309,363,683.60
  5. Step 5: Solve for x
    x = 309,363,683.60/20,104.21
  6. Step 6: Final answer
    x = 15,388.00

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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.