Home / 21,047.43-29,049.20-12,550.08

Finding the Fourth Proportional to 21,047.43, 29,049.20 and 12,550.08

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Solution

The fourth proportional to 21,047.43, 29,049.20 and 12,550.08 is: 17,321.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,047.43 : 29,049.20 = 12,550.08 : x
  2. Step 2: Convert to fraction form
    21,047.43/29,049.20 = 12,550.08/x
  3. Step 3: Cross multiply
    21,047.43x = 29,049.20 × 12,550.08
  4. Step 4: Simplify right side
    21,047.43x = 364,569,721.19
  5. Step 5: Solve for x
    x = 364,569,721.19/21,047.43
  6. Step 6: Final answer
    x = 17,321.34

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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.