Home / 28,724.83-39,639.87-16,149.58

Finding the Fourth Proportional to 28,724.83, 39,639.87 and 16,149.58

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Solution

The fourth proportional to 28,724.83, 39,639.87 and 16,149.58 is: 22,286.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,724.83 : 39,639.87 = 16,149.58 : x
  2. Step 2: Convert to fraction form
    28,724.83/39,639.87 = 16,149.58/x
  3. Step 3: Cross multiply
    28,724.83x = 39,639.87 × 16,149.58
  4. Step 4: Simplify right side
    28,724.83x = 640,167,152.65
  5. Step 5: Solve for x
    x = 640,167,152.65/28,724.83
  6. Step 6: Final answer
    x = 22,286.20

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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.