Home / 20,255.78-27,942.33-16,483.16

Finding the Fourth Proportional to 20,255.78, 27,942.33 and 16,483.16

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Solution

The fourth proportional to 20,255.78, 27,942.33 and 16,483.16 is: 22,738.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,255.78 : 27,942.33 = 16,483.16 : x
  2. Step 2: Convert to fraction form
    20,255.78/27,942.33 = 16,483.16/x
  3. Step 3: Cross multiply
    20,255.78x = 27,942.33 × 16,483.16
  4. Step 4: Simplify right side
    20,255.78x = 460,577,896.16
  5. Step 5: Solve for x
    x = 460,577,896.16/20,255.78
  6. Step 6: Final answer
    x = 22,738.10

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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.