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Finding the Fourth Proportional to 20,364.89, 30,550.93 and 7,224.89

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Solution

The fourth proportional to 20,364.89, 30,550.93 and 7,224.89 is: 10,838.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,364.89 : 30,550.93 = 7,224.89 : x
  2. Step 2: Convert to fraction form
    20,364.89/30,550.93 = 7,224.89/x
  3. Step 3: Cross multiply
    20,364.89x = 30,550.93 × 7,224.89
  4. Step 4: Simplify right side
    20,364.89x = 220,726,937.83
  5. Step 5: Solve for x
    x = 220,726,937.83/20,364.89
  6. Step 6: Final answer
    x = 10,838.60

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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.