Home / 22,971.78-31,696.20-15,025.68

Finding the Fourth Proportional to 22,971.78, 31,696.20 and 15,025.68

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Solution

The fourth proportional to 22,971.78, 31,696.20 and 15,025.68 is: 20,732.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,971.78 : 31,696.20 = 15,025.68 : x
  2. Step 2: Convert to fraction form
    22,971.78/31,696.20 = 15,025.68/x
  3. Step 3: Cross multiply
    22,971.78x = 31,696.20 × 15,025.68
  4. Step 4: Simplify right side
    22,971.78x = 476,256,958.42
  5. Step 5: Solve for x
    x = 476,256,958.42/22,971.78
  6. Step 6: Final answer
    x = 20,732.26

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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.