Home / 20,518.24-30,777.34-15,845.04

Finding the Fourth Proportional to 20,518.24, 30,777.34 and 15,845.04

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Solution

The fourth proportional to 20,518.24, 30,777.34 and 15,845.04 is: 23,767.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,518.24 : 30,777.34 = 15,845.04 : x
  2. Step 2: Convert to fraction form
    20,518.24/30,777.34 = 15,845.04/x
  3. Step 3: Cross multiply
    20,518.24x = 30,777.34 × 15,845.04
  4. Step 4: Simplify right side
    20,518.24x = 487,668,304.62
  5. Step 5: Solve for x
    x = 487,668,304.62/20,518.24
  6. Step 6: Final answer
    x = 23,767.55

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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.