Home / 20,649.73-28,497.21-11,697.23

Finding the Fourth Proportional to 20,649.73, 28,497.21 and 11,697.23

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Solution

The fourth proportional to 20,649.73, 28,497.21 and 11,697.23 is: 16,142.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,649.73 : 28,497.21 = 11,697.23 : x
  2. Step 2: Convert to fraction form
    20,649.73/28,497.21 = 11,697.23/x
  3. Step 3: Cross multiply
    20,649.73x = 28,497.21 × 11,697.23
  4. Step 4: Simplify right side
    20,649.73x = 333,338,351.67
  5. Step 5: Solve for x
    x = 333,338,351.67/20,649.73
  6. Step 6: Final answer
    x = 16,142.51

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.