Home / 23,146.78-31,942.68-12,536.44

Finding the Fourth Proportional to 23,146.78, 31,942.68 and 12,536.44

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Solution

The fourth proportional to 23,146.78, 31,942.68 and 12,536.44 is: 17,300.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    23,146.78 : 31,942.68 = 12,536.44 : x
  2. Step 2: Convert to fraction form
    23,146.78/31,942.68 = 12,536.44/x
  3. Step 3: Cross multiply
    23,146.78x = 31,942.68 × 12,536.44
  4. Step 4: Simplify right side
    23,146.78x = 400,447,491.26
  5. Step 5: Solve for x
    x = 400,447,491.26/23,146.78
  6. Step 6: Final answer
    x = 17,300.35

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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.