Home / 28,933.45-39,927.80-16,997.87

Finding the Fourth Proportional to 28,933.45, 39,927.80 and 16,997.87

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Solution

The fourth proportional to 28,933.45, 39,927.80 and 16,997.87 is: 23,456.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,933.45 : 39,927.80 = 16,997.87 : x
  2. Step 2: Convert to fraction form
    28,933.45/39,927.80 = 16,997.87/x
  3. Step 3: Cross multiply
    28,933.45x = 39,927.80 × 16,997.87
  4. Step 4: Simplify right side
    28,933.45x = 678,687,468.80
  5. Step 5: Solve for x
    x = 678,687,468.80/28,933.45
  6. Step 6: Final answer
    x = 23,456.85

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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.