Home / 22,886.88-31,584.47-12,817.44

Finding the Fourth Proportional to 22,886.88, 31,584.47 and 12,817.44

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Solution

The fourth proportional to 22,886.88, 31,584.47 and 12,817.44 is: 17,688.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,886.88 : 31,584.47 = 12,817.44 : x
  2. Step 2: Convert to fraction form
    22,886.88/31,584.47 = 12,817.44/x
  3. Step 3: Cross multiply
    22,886.88x = 31,584.47 × 12,817.44
  4. Step 4: Simplify right side
    22,886.88x = 404,832,049.16
  5. Step 5: Solve for x
    x = 404,832,049.16/22,886.88
  6. Step 6: Final answer
    x = 17,688.39

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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.