Home / 21,550.10-29,738.94-12,118.46

Finding the Fourth Proportional to 21,550.10, 29,738.94 and 12,118.46

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Solution

The fourth proportional to 21,550.10, 29,738.94 and 12,118.46 is: 16,723.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,550.10 : 29,738.94 = 12,118.46 : x
  2. Step 2: Convert to fraction form
    21,550.10/29,738.94 = 12,118.46/x
  3. Step 3: Cross multiply
    21,550.10x = 29,738.94 × 12,118.46
  4. Step 4: Simplify right side
    21,550.10x = 360,390,140.38
  5. Step 5: Solve for x
    x = 360,390,140.38/21,550.10
  6. Step 6: Final answer
    x = 16,723.36

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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.