Home / 20,127.99-30,188.50-5,338.41

Finding the Fourth Proportional to 20,127.99, 30,188.50 and 5,338.41

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Solution

The fourth proportional to 20,127.99, 30,188.50 and 5,338.41 is: 8,006.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,127.99 : 30,188.50 = 5,338.41 : x
  2. Step 2: Convert to fraction form
    20,127.99/30,188.50 = 5,338.41/x
  3. Step 3: Cross multiply
    20,127.99x = 30,188.50 × 5,338.41
  4. Step 4: Simplify right side
    20,127.99x = 161,158,463.73
  5. Step 5: Solve for x
    x = 161,158,463.73/20,127.99
  6. Step 6: Final answer
    x = 8,006.68

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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.