Home / 23,981.78-33,085.50-15,481.64

Finding the Fourth Proportional to 23,981.78, 33,085.50 and 15,481.64

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Solution

The fourth proportional to 23,981.78, 33,085.50 and 15,481.64 is: 21,358.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    23,981.78 : 33,085.50 = 15,481.64 : x
  2. Step 2: Convert to fraction form
    23,981.78/33,085.50 = 15,481.64/x
  3. Step 3: Cross multiply
    23,981.78x = 33,085.50 × 15,481.64
  4. Step 4: Simplify right side
    23,981.78x = 512,217,800.22
  5. Step 5: Solve for x
    x = 512,217,800.22/23,981.78
  6. Step 6: Final answer
    x = 21,358.62

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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.