Home / 23,148.78-31,945.44-12,538.44

Finding the Fourth Proportional to 23,148.78, 31,945.44 and 12,538.44

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Solution

The fourth proportional to 23,148.78, 31,945.44 and 12,538.44 is: 17,303.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    23,148.78 : 31,945.44 = 12,538.44 : x
  2. Step 2: Convert to fraction form
    23,148.78/31,945.44 = 12,538.44/x
  3. Step 3: Cross multiply
    23,148.78x = 31,945.44 × 12,538.44
  4. Step 4: Simplify right side
    23,148.78x = 400,545,982.71
  5. Step 5: Solve for x
    x = 400,545,982.71/23,148.78
  6. Step 6: Final answer
    x = 17,303.11

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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.