Home / 21,481.02-29,643.66-12,049.65

Finding the Fourth Proportional to 21,481.02, 29,643.66 and 12,049.65

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Solution

The fourth proportional to 21,481.02, 29,643.66 and 12,049.65 is: 16,628.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,481.02 : 29,643.66 = 12,049.65 : x
  2. Step 2: Convert to fraction form
    21,481.02/29,643.66 = 12,049.65/x
  3. Step 3: Cross multiply
    21,481.02x = 29,643.66 × 12,049.65
  4. Step 4: Simplify right side
    21,481.02x = 357,195,727.72
  5. Step 5: Solve for x
    x = 357,195,727.72/21,481.02
  6. Step 6: Final answer
    x = 16,628.43

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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.