Home / 36,903.12-50,930.52-20,989.92

Finding the Fourth Proportional to 36,903.12, 50,930.52 and 20,989.92

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Solution

The fourth proportional to 36,903.12, 50,930.52 and 20,989.92 is: 28,968.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,903.12 : 50,930.52 = 20,989.92 : x
  2. Step 2: Convert to fraction form
    36,903.12/50,930.52 = 20,989.92/x
  3. Step 3: Cross multiply
    36,903.12x = 50,930.52 × 20,989.92
  4. Step 4: Simplify right side
    36,903.12x = 1,069,027,540.36
  5. Step 5: Solve for x
    x = 1,069,027,540.36/36,903.12
  6. Step 6: Final answer
    x = 28,968.49

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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.