Home / 21,251.34-29,327.84-12,297.11

Finding the Fourth Proportional to 21,251.34, 29,327.84 and 12,297.11

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Solution

The fourth proportional to 21,251.34, 29,327.84 and 12,297.11 is: 16,970.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,251.34 : 29,327.84 = 12,297.11 : x
  2. Step 2: Convert to fraction form
    21,251.34/29,327.84 = 12,297.11/x
  3. Step 3: Cross multiply
    21,251.34x = 29,327.84 × 12,297.11
  4. Step 4: Simplify right side
    21,251.34x = 360,647,674.54
  5. Step 5: Solve for x
    x = 360,647,674.54/21,251.34
  6. Step 6: Final answer
    x = 16,970.59

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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.