Home / 20,292.54-30,441.25-7,809.66

Finding the Fourth Proportional to 20,292.54, 30,441.25 and 7,809.66

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Solution

The fourth proportional to 20,292.54, 30,441.25 and 7,809.66 is: 11,715.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,292.54 : 30,441.25 = 7,809.66 : x
  2. Step 2: Convert to fraction form
    20,292.54/30,441.25 = 7,809.66/x
  3. Step 3: Cross multiply
    20,292.54x = 30,441.25 × 7,809.66
  4. Step 4: Simplify right side
    20,292.54x = 237,735,812.48
  5. Step 5: Solve for x
    x = 237,735,812.48/20,292.54
  6. Step 6: Final answer
    x = 11,715.43

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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.