Home / 28,975.28-39,986.77-16,228.43

Finding the Fourth Proportional to 28,975.28, 39,986.77 and 16,228.43

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Solution

The fourth proportional to 28,975.28, 39,986.77 and 16,228.43 is: 22,395.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,975.28 : 39,986.77 = 16,228.43 : x
  2. Step 2: Convert to fraction form
    28,975.28/39,986.77 = 16,228.43/x
  3. Step 3: Cross multiply
    28,975.28x = 39,986.77 × 16,228.43
  4. Step 4: Simplify right side
    28,975.28x = 648,922,497.87
  5. Step 5: Solve for x
    x = 648,922,497.87/28,975.28
  6. Step 6: Final answer
    x = 22,395.73

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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.