Home / 22,247.18-30,704.56-12,687.09

Finding the Fourth Proportional to 22,247.18, 30,704.56 and 12,687.09

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Solution

The fourth proportional to 22,247.18, 30,704.56 and 12,687.09 is: 17,510.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,247.18 : 30,704.56 = 12,687.09 : x
  2. Step 2: Convert to fraction form
    22,247.18/30,704.56 = 12,687.09/x
  3. Step 3: Cross multiply
    22,247.18x = 30,704.56 × 12,687.09
  4. Step 4: Simplify right side
    22,247.18x = 389,551,299.17
  5. Step 5: Solve for x
    x = 389,551,299.17/22,247.18
  6. Step 6: Final answer
    x = 17,510.14

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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.