Home / 20,824.37-28,737.84-11,392.73

Finding the Fourth Proportional to 20,824.37, 28,737.84 and 11,392.73

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Solution

The fourth proportional to 20,824.37, 28,737.84 and 11,392.73 is: 15,722.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,824.37 : 28,737.84 = 11,392.73 : x
  2. Step 2: Convert to fraction form
    20,824.37/28,737.84 = 11,392.73/x
  3. Step 3: Cross multiply
    20,824.37x = 28,737.84 × 11,392.73
  4. Step 4: Simplify right side
    20,824.37x = 327,402,308.21
  5. Step 5: Solve for x
    x = 327,402,308.21/20,824.37
  6. Step 6: Final answer
    x = 15,722.08

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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.