Home / 22,248.12-30,702.44-12,816.72

Finding the Fourth Proportional to 22,248.12, 30,702.44 and 12,816.72

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Solution

The fourth proportional to 22,248.12, 30,702.44 and 12,816.72 is: 17,687.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,248.12 : 30,702.44 = 12,816.72 : x
  2. Step 2: Convert to fraction form
    22,248.12/30,702.44 = 12,816.72/x
  3. Step 3: Cross multiply
    22,248.12x = 30,702.44 × 12,816.72
  4. Step 4: Simplify right side
    22,248.12x = 393,504,576.80
  5. Step 5: Solve for x
    x = 393,504,576.80/22,248.12
  6. Step 6: Final answer
    x = 17,687.09

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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.