Home / 28,847.64-43,276.80-9,131.16

Finding the Fourth Proportional to 28,847.64, 43,276.80 and 9,131.16

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Solution

The fourth proportional to 28,847.64, 43,276.80 and 9,131.16 is: 13,698.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,847.64 : 43,276.80 = 9,131.16 : x
  2. Step 2: Convert to fraction form
    28,847.64/43,276.80 = 9,131.16/x
  3. Step 3: Cross multiply
    28,847.64x = 43,276.80 × 9,131.16
  4. Step 4: Simplify right side
    28,847.64x = 395,167,385.09
  5. Step 5: Solve for x
    x = 395,167,385.09/28,847.64
  6. Step 6: Final answer
    x = 13,698.43

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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.