Home / 20,577.06-30,777.69-17,179.20

Finding the Fourth Proportional to 20,577.06, 30,777.69 and 17,179.20

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Solution

The fourth proportional to 20,577.06, 30,777.69 and 17,179.20 is: 25,695.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,577.06 : 30,777.69 = 17,179.20 : x
  2. Step 2: Convert to fraction form
    20,577.06/30,777.69 = 17,179.20/x
  3. Step 3: Cross multiply
    20,577.06x = 30,777.69 × 17,179.20
  4. Step 4: Simplify right side
    20,577.06x = 528,736,092.05
  5. Step 5: Solve for x
    x = 528,736,092.05/20,577.06
  6. Step 6: Final answer
    x = 25,695.41

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.