Home / 20,104.52-27,745.88-11,154.90

Finding the Fourth Proportional to 20,104.52, 27,745.88 and 11,154.90

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Solution

The fourth proportional to 20,104.52, 27,745.88 and 11,154.90 is: 15,394.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,104.52 : 27,745.88 = 11,154.90 : x
  2. Step 2: Convert to fraction form
    20,104.52/27,745.88 = 11,154.90/x
  3. Step 3: Cross multiply
    20,104.52x = 27,745.88 × 11,154.90
  4. Step 4: Simplify right side
    20,104.52x = 309,502,516.81
  5. Step 5: Solve for x
    x = 309,502,516.81/20,104.52
  6. Step 6: Final answer
    x = 15,394.67

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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.