Home / 28,685.21-43,027.81-8,963.77

Finding the Fourth Proportional to 28,685.21, 43,027.81 and 8,963.77

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Solution

The fourth proportional to 28,685.21, 43,027.81 and 8,963.77 is: 13,445.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,685.21 : 43,027.81 = 8,963.77 : x
  2. Step 2: Convert to fraction form
    28,685.21/43,027.81 = 8,963.77/x
  3. Step 3: Cross multiply
    28,685.21x = 43,027.81 × 8,963.77
  4. Step 4: Simplify right side
    28,685.21x = 385,691,295.24
  5. Step 5: Solve for x
    x = 385,691,295.24/28,685.21
  6. Step 6: Final answer
    x = 13,445.65

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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.