Home / 28,781.56-43,173.15-8,005.06

Finding the Fourth Proportional to 28,781.56, 43,173.15 and 8,005.06

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Solution

The fourth proportional to 28,781.56, 43,173.15 and 8,005.06 is: 12,007.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,781.56 : 43,173.15 = 8,005.06 : x
  2. Step 2: Convert to fraction form
    28,781.56/43,173.15 = 8,005.06/x
  3. Step 3: Cross multiply
    28,781.56x = 43,173.15 × 8,005.06
  4. Step 4: Simplify right side
    28,781.56x = 345,603,656.14
  5. Step 5: Solve for x
    x = 345,603,656.14/28,781.56
  6. Step 6: Final answer
    x = 12,007.82

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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.