Home / 28,891.64-43,337.74-9,170.30

Finding the Fourth Proportional to 28,891.64, 43,337.74 and 9,170.30

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Solution

The fourth proportional to 28,891.64, 43,337.74 and 9,170.30 is: 13,755.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,891.64 : 43,337.74 = 9,170.30 : x
  2. Step 2: Convert to fraction form
    28,891.64/43,337.74 = 9,170.30/x
  3. Step 3: Cross multiply
    28,891.64x = 43,337.74 × 9,170.30
  4. Step 4: Simplify right side
    28,891.64x = 397,420,077.12
  5. Step 5: Solve for x
    x = 397,420,077.12/28,891.64
  6. Step 6: Final answer
    x = 13,755.54

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1.5x scale

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.