Home / 28,910.28-39,891.78-16,330.44

Finding the Fourth Proportional to 28,910.28, 39,891.78 and 16,330.44

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Solution

The fourth proportional to 28,910.28, 39,891.78 and 16,330.44 is: 22,533.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,910.28 : 39,891.78 = 16,330.44 : x
  2. Step 2: Convert to fraction form
    28,910.28/39,891.78 = 16,330.44/x
  3. Step 3: Cross multiply
    28,910.28x = 39,891.78 × 16,330.44
  4. Step 4: Simplify right side
    28,910.28x = 651,450,319.78
  5. Step 5: Solve for x
    x = 651,450,319.78/28,910.28
  6. Step 6: Final answer
    x = 22,533.52

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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.