Home / 21,192.76-29,380.01-20,069.30

Finding the Fourth Proportional to 21,192.76, 29,380.01 and 20,069.30

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Solution

The fourth proportional to 21,192.76, 29,380.01 and 20,069.30 is: 27,822.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,192.76 : 29,380.01 = 20,069.30 : x
  2. Step 2: Convert to fraction form
    21,192.76/29,380.01 = 20,069.30/x
  3. Step 3: Cross multiply
    21,192.76x = 29,380.01 × 20,069.30
  4. Step 4: Simplify right side
    21,192.76x = 589,636,234.69
  5. Step 5: Solve for x
    x = 589,636,234.69/21,192.76
  6. Step 6: Final answer
    x = 27,822.53

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.39) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.