Home / 28,861.64-43,291.44-11,087.72

Finding the Fourth Proportional to 28,861.64, 43,291.44 and 11,087.72

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Solution

The fourth proportional to 28,861.64, 43,291.44 and 11,087.72 is: 16,631.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,861.64 : 43,291.44 = 11,087.72 : x
  2. Step 2: Convert to fraction form
    28,861.64/43,291.44 = 11,087.72/x
  3. Step 3: Cross multiply
    28,861.64x = 43,291.44 × 11,087.72
  4. Step 4: Simplify right side
    28,861.64x = 480,003,365.12
  5. Step 5: Solve for x
    x = 480,003,365.12/28,861.64
  6. Step 6: Final answer
    x = 16,631.19

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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.