Home / 28,127.44-38,815.95-16,190.56

Finding the Fourth Proportional to 28,127.44, 38,815.95 and 16,190.56

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Solution

The fourth proportional to 28,127.44, 38,815.95 and 16,190.56 is: 22,343.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,127.44 : 38,815.95 = 16,190.56 : x
  2. Step 2: Convert to fraction form
    28,127.44/38,815.95 = 16,190.56/x
  3. Step 3: Cross multiply
    28,127.44x = 38,815.95 × 16,190.56
  4. Step 4: Simplify right side
    28,127.44x = 628,451,967.43
  5. Step 5: Solve for x
    x = 628,451,967.43/28,127.44
  6. Step 6: Final answer
    x = 22,343.02

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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.