Home / 20,208.06-30,306.42-7,719.48

Finding the Fourth Proportional to 20,208.06, 30,306.42 and 7,719.48

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Solution

The fourth proportional to 20,208.06, 30,306.42 and 7,719.48 is: 11,577.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,208.06 : 30,306.42 = 7,719.48 : x
  2. Step 2: Convert to fraction form
    20,208.06/30,306.42 = 7,719.48/x
  3. Step 3: Cross multiply
    20,208.06x = 30,306.42 × 7,719.48
  4. Step 4: Simplify right side
    20,208.06x = 233,949,803.06
  5. Step 5: Solve for x
    x = 233,949,803.06/20,208.06
  6. Step 6: Final answer
    x = 11,577.05

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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.