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Finding the Fourth Proportional to 20,360.56, 30,544.12 and 9,973.12

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Solution

The fourth proportional to 20,360.56, 30,544.12 and 9,973.12 is: 14,961.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,360.56 : 30,544.12 = 9,973.12 : x
  2. Step 2: Convert to fraction form
    20,360.56/30,544.12 = 9,973.12/x
  3. Step 3: Cross multiply
    20,360.56x = 30,544.12 × 9,973.12
  4. Step 4: Simplify right side
    20,360.56x = 304,620,174.05
  5. Step 5: Solve for x
    x = 304,620,174.05/20,360.56
  6. Step 6: Final answer
    x = 14,961.29

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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.