Home / 20,627.48-30,941.31-7,474.70

Finding the Fourth Proportional to 20,627.48, 30,941.31 and 7,474.70

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Solution

The fourth proportional to 20,627.48, 30,941.31 and 7,474.70 is: 11,212.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,627.48 : 30,941.31 = 7,474.70 : x
  2. Step 2: Convert to fraction form
    20,627.48/30,941.31 = 7,474.70/x
  3. Step 3: Cross multiply
    20,627.48x = 30,941.31 × 7,474.70
  4. Step 4: Simplify right side
    20,627.48x = 231,277,009.86
  5. Step 5: Solve for x
    x = 231,277,009.86/20,627.48
  6. Step 6: Final answer
    x = 11,212.08

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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.