Home / 28,845.64-43,273.80-9,129.16

Finding the Fourth Proportional to 28,845.64, 43,273.80 and 9,129.16

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Solution

The fourth proportional to 28,845.64, 43,273.80 and 9,129.16 is: 13,695.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,845.64 : 43,273.80 = 9,129.16 : x
  2. Step 2: Convert to fraction form
    28,845.64/43,273.80 = 9,129.16/x
  3. Step 3: Cross multiply
    28,845.64x = 43,273.80 × 9,129.16
  4. Step 4: Simplify right side
    28,845.64x = 395,053,444.01
  5. Step 5: Solve for x
    x = 395,053,444.01/28,845.64
  6. Step 6: Final answer
    x = 13,695.43

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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.