Home / 28,963.22-39,969.86-16,387.97

Finding the Fourth Proportional to 28,963.22, 39,969.86 and 16,387.97

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Solution

The fourth proportional to 28,963.22, 39,969.86 and 16,387.97 is: 22,615.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,963.22 : 39,969.86 = 16,387.97 : x
  2. Step 2: Convert to fraction form
    28,963.22/39,969.86 = 16,387.97/x
  3. Step 3: Cross multiply
    28,963.22x = 39,969.86 × 16,387.97
  4. Step 4: Simplify right side
    28,963.22x = 655,024,884.57
  5. Step 5: Solve for x
    x = 655,024,884.57/28,963.22
  6. Step 6: Final answer
    x = 22,615.75

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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.