Home / 28,724.22-39,639.38-16,148.97

Finding the Fourth Proportional to 28,724.22, 39,639.38 and 16,148.97

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Solution

The fourth proportional to 28,724.22, 39,639.38 and 16,148.97 is: 22,285.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,724.22 : 39,639.38 = 16,148.97 : x
  2. Step 2: Convert to fraction form
    28,724.22/39,639.38 = 16,148.97/x
  3. Step 3: Cross multiply
    28,724.22x = 39,639.38 × 16,148.97
  4. Step 4: Simplify right side
    28,724.22x = 640,135,077.69
  5. Step 5: Solve for x
    x = 640,135,077.69/28,724.22
  6. Step 6: Final answer
    x = 22,285.55

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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.