Home / 28,191.96-38,902.62-16,247.28

Finding the Fourth Proportional to 28,191.96, 38,902.62 and 16,247.28

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Solution

The fourth proportional to 28,191.96, 38,902.62 and 16,247.28 is: 22,419.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,191.96 : 38,902.62 = 16,247.28 : x
  2. Step 2: Convert to fraction form
    28,191.96/38,902.62 = 16,247.28/x
  3. Step 3: Cross multiply
    28,191.96x = 38,902.62 × 16,247.28
  4. Step 4: Simplify right side
    28,191.96x = 632,061,759.87
  5. Step 5: Solve for x
    x = 632,061,759.87/28,191.96
  6. Step 6: Final answer
    x = 22,419.93

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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.