Home / 21,586.83-29,790.39-12,634.48

Finding the Fourth Proportional to 21,586.83, 29,790.39 and 12,634.48

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Solution

The fourth proportional to 21,586.83, 29,790.39 and 12,634.48 is: 17,435.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,586.83 : 29,790.39 = 12,634.48 : x
  2. Step 2: Convert to fraction form
    21,586.83/29,790.39 = 12,634.48/x
  3. Step 3: Cross multiply
    21,586.83x = 29,790.39 × 12,634.48
  4. Step 4: Simplify right side
    21,586.83x = 376,386,086.65
  5. Step 5: Solve for x
    x = 376,386,086.65/21,586.83
  6. Step 6: Final answer
    x = 17,435.91

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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.