Home / 28,955.66-39,960.74-16,209.97

Finding the Fourth Proportional to 28,955.66, 39,960.74 and 16,209.97

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Solution

The fourth proportional to 28,955.66, 39,960.74 and 16,209.97 is: 22,370.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,955.66 : 39,960.74 = 16,209.97 : x
  2. Step 2: Convert to fraction form
    28,955.66/39,960.74 = 16,209.97/x
  3. Step 3: Cross multiply
    28,955.66x = 39,960.74 × 16,209.97
  4. Step 4: Simplify right side
    28,955.66x = 647,762,115.72
  5. Step 5: Solve for x
    x = 647,762,115.72/28,955.66
  6. Step 6: Final answer
    x = 22,370.83

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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.