Home / 28,425.12-39,228.46-16,329.39

Finding the Fourth Proportional to 28,425.12, 39,228.46 and 16,329.39

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Solution

The fourth proportional to 28,425.12, 39,228.46 and 16,329.39 is: 22,535.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,425.12 : 39,228.46 = 16,329.39 : x
  2. Step 2: Convert to fraction form
    28,425.12/39,228.46 = 16,329.39/x
  3. Step 3: Cross multiply
    28,425.12x = 39,228.46 × 16,329.39
  4. Step 4: Simplify right side
    28,425.12x = 640,576,822.44
  5. Step 5: Solve for x
    x = 640,576,822.44/28,425.12
  6. Step 6: Final answer
    x = 22,535.59

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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.