Home / 20,411.56-30,608.70-7,267.24

Finding the Fourth Proportional to 20,411.56, 30,608.70 and 7,267.24

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Solution

The fourth proportional to 20,411.56, 30,608.70 and 7,267.24 is: 10,897.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,411.56 : 30,608.70 = 7,267.24 : x
  2. Step 2: Convert to fraction form
    20,411.56/30,608.70 = 7,267.24/x
  3. Step 3: Cross multiply
    20,411.56x = 30,608.70 × 7,267.24
  4. Step 4: Simplify right side
    20,411.56x = 222,440,768.99
  5. Step 5: Solve for x
    x = 222,440,768.99/20,411.56
  6. Step 6: Final answer
    x = 10,897.78

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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.