Home / 21,922.92-30,252.96-12,491.01

Finding the Fourth Proportional to 21,922.92, 30,252.96 and 12,491.01

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Solution

The fourth proportional to 21,922.92, 30,252.96 and 12,491.01 is: 17,237.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,922.92 : 30,252.96 = 12,491.01 : x
  2. Step 2: Convert to fraction form
    21,922.92/30,252.96 = 12,491.01/x
  3. Step 3: Cross multiply
    21,922.92x = 30,252.96 × 12,491.01
  4. Step 4: Simplify right side
    21,922.92x = 377,890,025.89
  5. Step 5: Solve for x
    x = 377,890,025.89/21,922.92
  6. Step 6: Final answer
    x = 17,237.21

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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.