Home / 28,914.80-39,902.49-16,168.44

Finding the Fourth Proportional to 28,914.80, 39,902.49 and 16,168.44

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Solution

The fourth proportional to 28,914.80, 39,902.49 and 16,168.44 is: 22,312.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,914.80 : 39,902.49 = 16,168.44 : x
  2. Step 2: Convert to fraction form
    28,914.80/39,902.49 = 16,168.44/x
  3. Step 3: Cross multiply
    28,914.80x = 39,902.49 × 16,168.44
  4. Step 4: Simplify right side
    28,914.80x = 645,161,015.42
  5. Step 5: Solve for x
    x = 645,161,015.42/28,914.80
  6. Step 6: Final answer
    x = 22,312.49

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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.