Home / 36,905.27-50,928.98-20,989.71

Finding the Fourth Proportional to 36,905.27, 50,928.98 and 20,989.71

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Solution

The fourth proportional to 36,905.27, 50,928.98 and 20,989.71 is: 28,965.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,905.27 : 50,928.98 = 20,989.71 : x
  2. Step 2: Convert to fraction form
    36,905.27/50,928.98 = 20,989.71/x
  3. Step 3: Cross multiply
    36,905.27x = 50,928.98 × 20,989.71
  4. Step 4: Simplify right side
    36,905.27x = 1,068,984,415.85
  5. Step 5: Solve for x
    x = 1,068,984,415.85/36,905.27
  6. Step 6: Final answer
    x = 28,965.63

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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.