Home / 28,136.72-38,838.48-16,204.88

Finding the Fourth Proportional to 28,136.72, 38,838.48 and 16,204.88

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Solution

The fourth proportional to 28,136.72, 38,838.48 and 16,204.88 is: 22,368.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,136.72 : 38,838.48 = 16,204.88 : x
  2. Step 2: Convert to fraction form
    28,136.72/38,838.48 = 16,204.88/x
  3. Step 3: Cross multiply
    28,136.72x = 38,838.48 × 16,204.88
  4. Step 4: Simplify right side
    28,136.72x = 629,372,907.78
  5. Step 5: Solve for x
    x = 629,372,907.78/28,136.72
  6. Step 6: Final answer
    x = 22,368.38

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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.