Home / 20,161.02-27,819.18-11,208.60

Finding the Fourth Proportional to 20,161.02, 27,819.18 and 11,208.60

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Solution

The fourth proportional to 20,161.02, 27,819.18 and 11,208.60 is: 15,466.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,161.02 : 27,819.18 = 11,208.60 : x
  2. Step 2: Convert to fraction form
    20,161.02/27,819.18 = 11,208.60/x
  3. Step 3: Cross multiply
    20,161.02x = 27,819.18 × 11,208.60
  4. Step 4: Simplify right side
    20,161.02x = 311,814,060.95
  5. Step 5: Solve for x
    x = 311,814,060.95/20,161.02
  6. Step 6: Final answer
    x = 15,466.18

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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.