Home / 28,653.62-42,997.16-12,012.38

Finding the Fourth Proportional to 28,653.62, 42,997.16 and 12,012.38

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Solution

The fourth proportional to 28,653.62, 42,997.16 and 12,012.38 is: 18,025.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,653.62 : 42,997.16 = 12,012.38 : x
  2. Step 2: Convert to fraction form
    28,653.62/42,997.16 = 12,012.38/x
  3. Step 3: Cross multiply
    28,653.62x = 42,997.16 × 12,012.38
  4. Step 4: Simplify right side
    28,653.62x = 516,498,039.89
  5. Step 5: Solve for x
    x = 516,498,039.89/28,653.62
  6. Step 6: Final answer
    x = 18,025.58

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.