Home / 22,629.32-31,227.64-12,558.20

Finding the Fourth Proportional to 22,629.32, 31,227.64 and 12,558.20

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Solution

The fourth proportional to 22,629.32, 31,227.64 and 12,558.20 is: 17,329.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,629.32 : 31,227.64 = 12,558.20 : x
  2. Step 2: Convert to fraction form
    22,629.32/31,227.64 = 12,558.20/x
  3. Step 3: Cross multiply
    22,629.32x = 31,227.64 × 12,558.20
  4. Step 4: Simplify right side
    22,629.32x = 392,162,948.65
  5. Step 5: Solve for x
    x = 392,162,948.65/22,629.32
  6. Step 6: Final answer
    x = 17,329.86

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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.