Home / 28,669.87-43,003.28-8,946.17

Finding the Fourth Proportional to 28,669.87, 43,003.28 and 8,946.17

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Solution

The fourth proportional to 28,669.87, 43,003.28 and 8,946.17 is: 13,418.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,669.87 : 43,003.28 = 8,946.17 : x
  2. Step 2: Convert to fraction form
    28,669.87/43,003.28 = 8,946.17/x
  3. Step 3: Cross multiply
    28,669.87x = 43,003.28 × 8,946.17
  4. Step 4: Simplify right side
    28,669.87x = 384,714,622.05
  5. Step 5: Solve for x
    x = 384,714,622.05/28,669.87
  6. Step 6: Final answer
    x = 13,418.78

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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.