Home / 22,388.03-30,896.23-12,316.90

Finding the Fourth Proportional to 22,388.03, 30,896.23 and 12,316.90

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Solution

The fourth proportional to 22,388.03, 30,896.23 and 12,316.90 is: 16,997.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,388.03 : 30,896.23 = 12,316.90 : x
  2. Step 2: Convert to fraction form
    22,388.03/30,896.23 = 12,316.90/x
  3. Step 3: Cross multiply
    22,388.03x = 30,896.23 × 12,316.90
  4. Step 4: Simplify right side
    22,388.03x = 380,545,620.81
  5. Step 5: Solve for x
    x = 380,545,620.81/22,388.03
  6. Step 6: Final answer
    x = 16,997.73

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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.