Home / 22,611.14-31,203.74-12,540

Finding the Fourth Proportional to 22,611.14, 31,203.74 and 12,540

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Solution

The fourth proportional to 22,611.14, 31,203.74 and 12,540 is: 17,305.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,611.14 : 31,203.74 = 12,540 : x
  2. Step 2: Convert to fraction form
    22,611.14/31,203.74 = 12,540/x
  3. Step 3: Cross multiply
    22,611.14x = 31,203.74 × 12,540
  4. Step 4: Simplify right side
    22,611.14x = 391,294,899.60
  5. Step 5: Solve for x
    x = 391,294,899.60/22,611.14
  6. Step 6: Final answer
    x = 17,305.40

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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.