Home / 22,479.66-31,022.94-12,922.65

Finding the Fourth Proportional to 22,479.66, 31,022.94 and 12,922.65

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Solution

The fourth proportional to 22,479.66, 31,022.94 and 12,922.65 is: 17,833.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,479.66 : 31,022.94 = 12,922.65 : x
  2. Step 2: Convert to fraction form
    22,479.66/31,022.94 = 12,922.65/x
  3. Step 3: Cross multiply
    22,479.66x = 31,022.94 × 12,922.65
  4. Step 4: Simplify right side
    22,479.66x = 400,898,595.59
  5. Step 5: Solve for x
    x = 400,898,595.59/22,479.66
  6. Step 6: Final answer
    x = 17,833.84

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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.