Home / 22,884.88-31,581.72-12,815.45

Finding the Fourth Proportional to 22,884.88, 31,581.72 and 12,815.45

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Solution

The fourth proportional to 22,884.88, 31,581.72 and 12,815.45 is: 17,685.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,884.88 : 31,581.72 = 12,815.45 : x
  2. Step 2: Convert to fraction form
    22,884.88/31,581.72 = 12,815.45/x
  3. Step 3: Cross multiply
    22,884.88x = 31,581.72 × 12,815.45
  4. Step 4: Simplify right side
    22,884.88x = 404,733,731.59
  5. Step 5: Solve for x
    x = 404,733,731.59/22,884.88
  6. Step 6: Final answer
    x = 17,685.64

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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.