Home / 28,426.20-39,228.32-16,496.64

Finding the Fourth Proportional to 28,426.20, 39,228.32 and 16,496.64

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Solution

The fourth proportional to 28,426.20, 39,228.32 and 16,496.64 is: 22,765.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,426.20 : 39,228.32 = 16,496.64 : x
  2. Step 2: Convert to fraction form
    28,426.20/39,228.32 = 16,496.64/x
  3. Step 3: Cross multiply
    28,426.20x = 39,228.32 × 16,496.64
  4. Step 4: Simplify right side
    28,426.20x = 647,135,472.84
  5. Step 5: Solve for x
    x = 647,135,472.84/28,426.20
  6. Step 6: Final answer
    x = 22,765.46

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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.