Home / 18,161.39-25,076.72-14,640.32

Finding the Fourth Proportional to 18,161.39, 25,076.72 and 14,640.32

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Solution

The fourth proportional to 18,161.39, 25,076.72 and 14,640.32 is: 20,214.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,161.39 : 25,076.72 = 14,640.32 : x
  2. Step 2: Convert to fraction form
    18,161.39/25,076.72 = 14,640.32/x
  3. Step 3: Cross multiply
    18,161.39x = 25,076.72 × 14,640.32
  4. Step 4: Simplify right side
    18,161.39x = 367,131,205.35
  5. Step 5: Solve for x
    x = 367,131,205.35/18,161.39
  6. Step 6: Final answer
    x = 20,214.93

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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.