Home / 28,864.56-43,310.60-19,993.56

Finding the Fourth Proportional to 28,864.56, 43,310.60 and 19,993.56

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Solution

The fourth proportional to 28,864.56, 43,310.60 and 19,993.56 is: 29,999.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,864.56 : 43,310.60 = 19,993.56 : x
  2. Step 2: Convert to fraction form
    28,864.56/43,310.60 = 19,993.56/x
  3. Step 3: Cross multiply
    28,864.56x = 43,310.60 × 19,993.56
  4. Step 4: Simplify right side
    28,864.56x = 865,933,079.74
  5. Step 5: Solve for x
    x = 865,933,079.74/28,864.56
  6. Step 6: Final answer
    x = 29,999.87

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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.