Home / 28,313.20-42,453.60-8,588.80

Finding the Fourth Proportional to 28,313.20, 42,453.60 and 8,588.80

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Solution

The fourth proportional to 28,313.20, 42,453.60 and 8,588.80 is: 12,878.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,313.20 : 42,453.60 = 8,588.80 : x
  2. Step 2: Convert to fraction form
    28,313.20/42,453.60 = 8,588.80/x
  3. Step 3: Cross multiply
    28,313.20x = 42,453.60 × 8,588.80
  4. Step 4: Simplify right side
    28,313.20x = 364,625,479.68
  5. Step 5: Solve for x
    x = 364,625,479.68/28,313.20
  6. Step 6: Final answer
    x = 12,878.29

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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.