Home / 22,629.57-31,229.52-12,558.75

Finding the Fourth Proportional to 22,629.57, 31,229.52 and 12,558.75

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Solution

The fourth proportional to 22,629.57, 31,229.52 and 12,558.75 is: 17,331.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,629.57 : 31,229.52 = 12,558.75 : x
  2. Step 2: Convert to fraction form
    22,629.57/31,229.52 = 12,558.75/x
  3. Step 3: Cross multiply
    22,629.57x = 31,229.52 × 12,558.75
  4. Step 4: Simplify right side
    22,629.57x = 392,203,734.30
  5. Step 5: Solve for x
    x = 392,203,734.30/22,629.57
  6. Step 6: Final answer
    x = 17,331.47

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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.