Home / 28,775.52-39,711.39-16,029.42

Finding the Fourth Proportional to 28,775.52, 39,711.39 and 16,029.42

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Solution

The fourth proportional to 28,775.52, 39,711.39 and 16,029.42 is: 22,121.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,775.52 : 39,711.39 = 16,029.42 : x
  2. Step 2: Convert to fraction form
    28,775.52/39,711.39 = 16,029.42/x
  3. Step 3: Cross multiply
    28,775.52x = 39,711.39 × 16,029.42
  4. Step 4: Simplify right side
    28,775.52x = 636,550,549.09
  5. Step 5: Solve for x
    x = 636,550,549.09/28,775.52
  6. Step 6: Final answer
    x = 22,121.25

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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.