Home / 28,890.56-43,319.64-9,165.44

Finding the Fourth Proportional to 28,890.56, 43,319.64 and 9,165.44

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Solution

The fourth proportional to 28,890.56, 43,319.64 and 9,165.44 is: 13,743.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,890.56 : 43,319.64 = 9,165.44 : x
  2. Step 2: Convert to fraction form
    28,890.56/43,319.64 = 9,165.44/x
  3. Step 3: Cross multiply
    28,890.56x = 43,319.64 × 9,165.44
  4. Step 4: Simplify right side
    28,890.56x = 397,043,561.24
  5. Step 5: Solve for x
    x = 397,043,561.24/28,890.56
  6. Step 6: Final answer
    x = 13,743.02

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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.