Home / 20,173.72-30,264.68-7,027.12

Finding the Fourth Proportional to 20,173.72, 30,264.68 and 7,027.12

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Solution

The fourth proportional to 20,173.72, 30,264.68 and 7,027.12 is: 10,542.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,173.72 : 30,264.68 = 7,027.12 : x
  2. Step 2: Convert to fraction form
    20,173.72/30,264.68 = 7,027.12/x
  3. Step 3: Cross multiply
    20,173.72x = 30,264.68 × 7,027.12
  4. Step 4: Simplify right side
    20,173.72x = 212,673,538.12
  5. Step 5: Solve for x
    x = 212,673,538.12/20,173.72
  6. Step 6: Final answer
    x = 10,542.11

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.