Home / 20,232.78-27,905.41-13,161.46

Finding the Fourth Proportional to 20,232.78, 27,905.41 and 13,161.46

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Solution

The fourth proportional to 20,232.78, 27,905.41 and 13,161.46 is: 18,152.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,232.78 : 27,905.41 = 13,161.46 : x
  2. Step 2: Convert to fraction form
    20,232.78/27,905.41 = 13,161.46/x
  3. Step 3: Cross multiply
    20,232.78x = 27,905.41 × 13,161.46
  4. Step 4: Simplify right side
    20,232.78x = 367,275,937.50
  5. Step 5: Solve for x
    x = 367,275,937.50/20,232.78
  6. Step 6: Final answer
    x = 18,152.52

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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.