Home / 22,431.78-30,937.68-19,737.18

Finding the Fourth Proportional to 22,431.78, 30,937.68 and 19,737.18

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Solution

The fourth proportional to 22,431.78, 30,937.68 and 19,737.18 is: 27,221.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,431.78 : 30,937.68 = 19,737.18 : x
  2. Step 2: Convert to fraction form
    22,431.78/30,937.68 = 19,737.18/x
  3. Step 3: Cross multiply
    22,431.78x = 30,937.68 × 19,737.18
  4. Step 4: Simplify right side
    22,431.78x = 610,622,558.94
  5. Step 5: Solve for x
    x = 610,622,558.94/22,431.78
  6. Step 6: Final answer
    x = 27,221.32

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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.