Home / 28,716.52-39,622.98-16,777.55

Finding the Fourth Proportional to 28,716.52, 39,622.98 and 16,777.55

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Solution

The fourth proportional to 28,716.52, 39,622.98 and 16,777.55 is: 23,149.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,716.52 : 39,622.98 = 16,777.55 : x
  2. Step 2: Convert to fraction form
    28,716.52/39,622.98 = 16,777.55/x
  3. Step 3: Cross multiply
    28,716.52x = 39,622.98 × 16,777.55
  4. Step 4: Simplify right side
    28,716.52x = 664,776,329.98
  5. Step 5: Solve for x
    x = 664,776,329.98/28,716.52
  6. Step 6: Final answer
    x = 23,149.62

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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.