Home / 22,951.78-31,668.62-15,005.68

Finding the Fourth Proportional to 22,951.78, 31,668.62 and 15,005.68

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Solution

The fourth proportional to 22,951.78, 31,668.62 and 15,005.68 is: 20,704.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,951.78 : 31,668.62 = 15,005.68 : x
  2. Step 2: Convert to fraction form
    22,951.78/31,668.62 = 15,005.68/x
  3. Step 3: Cross multiply
    22,951.78x = 31,668.62 × 15,005.68
  4. Step 4: Simplify right side
    22,951.78x = 475,209,177.76
  5. Step 5: Solve for x
    x = 475,209,177.76/22,951.78
  6. Step 6: Final answer
    x = 20,704.68

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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.