Home / 28,959.24-39,960.37-16,213.12

Finding the Fourth Proportional to 28,959.24, 39,960.37 and 16,213.12

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Solution

The fourth proportional to 28,959.24, 39,960.37 and 16,213.12 is: 22,372.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,959.24 : 39,960.37 = 16,213.12 : x
  2. Step 2: Convert to fraction form
    28,959.24/39,960.37 = 16,213.12/x
  3. Step 3: Cross multiply
    28,959.24x = 39,960.37 × 16,213.12
  4. Step 4: Simplify right side
    28,959.24x = 647,882,274.05
  5. Step 5: Solve for x
    x = 647,882,274.05/28,959.24
  6. Step 6: Final answer
    x = 22,372.21

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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.