Home / 28,136.31-38,832.89-16,206.56

Finding the Fourth Proportional to 28,136.31, 38,832.89 and 16,206.56

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Solution

The fourth proportional to 28,136.31, 38,832.89 and 16,206.56 is: 22,367.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,136.31 : 38,832.89 = 16,206.56 : x
  2. Step 2: Convert to fraction form
    28,136.31/38,832.89 = 16,206.56/x
  3. Step 3: Cross multiply
    28,136.31x = 38,832.89 × 16,206.56
  4. Step 4: Simplify right side
    28,136.31x = 629,347,432.18
  5. Step 5: Solve for x
    x = 629,347,432.18/28,136.31
  6. Step 6: Final answer
    x = 22,367.81

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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.