Home / 28,135.28-38,825.52-16,199.84

Finding the Fourth Proportional to 28,135.28, 38,825.52 and 16,199.84

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Solution

The fourth proportional to 28,135.28, 38,825.52 and 16,199.84 is: 22,355.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,135.28 : 38,825.52 = 16,199.84 : x
  2. Step 2: Convert to fraction form
    28,135.28/38,825.52 = 16,199.84/x
  3. Step 3: Cross multiply
    28,135.28x = 38,825.52 × 16,199.84
  4. Step 4: Simplify right side
    28,135.28x = 628,967,211.92
  5. Step 5: Solve for x
    x = 628,967,211.92/28,135.28
  6. Step 6: Final answer
    x = 22,355.11

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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.