Home / 28,248.89-38,983.47-16,149.64

Finding the Fourth Proportional to 28,248.89, 38,983.47 and 16,149.64

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Solution

The fourth proportional to 28,248.89, 38,983.47 and 16,149.64 is: 22,286.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,248.89 : 38,983.47 = 16,149.64 : x
  2. Step 2: Convert to fraction form
    28,248.89/38,983.47 = 16,149.64/x
  3. Step 3: Cross multiply
    28,248.89x = 38,983.47 × 16,149.64
  4. Step 4: Simplify right side
    28,248.89x = 629,568,730.79
  5. Step 5: Solve for x
    x = 629,568,730.79/28,248.89
  6. Step 6: Final answer
    x = 22,286.49

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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.