Home / 28,313.09-42,469.76-8,591.81

Finding the Fourth Proportional to 28,313.09, 42,469.76 and 8,591.81

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Solution

The fourth proportional to 28,313.09, 42,469.76 and 8,591.81 is: 12,887.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,313.09 : 42,469.76 = 8,591.81 : x
  2. Step 2: Convert to fraction form
    28,313.09/42,469.76 = 8,591.81/x
  3. Step 3: Cross multiply
    28,313.09x = 42,469.76 × 8,591.81
  4. Step 4: Simplify right side
    28,313.09x = 364,892,236.32
  5. Step 5: Solve for x
    x = 364,892,236.32/28,313.09
  6. Step 6: Final answer
    x = 12,887.76

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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.