Home / 28,965.60-43,453.20-12,333.60

Finding the Fourth Proportional to 28,965.60, 43,453.20 and 12,333.60

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Solution

The fourth proportional to 28,965.60, 43,453.20 and 12,333.60 is: 18,502.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,965.60 : 43,453.20 = 12,333.60 : x
  2. Step 2: Convert to fraction form
    28,965.60/43,453.20 = 12,333.60/x
  3. Step 3: Cross multiply
    28,965.60x = 43,453.20 × 12,333.60
  4. Step 4: Simplify right side
    28,965.60x = 535,934,387.52
  5. Step 5: Solve for x
    x = 535,934,387.52/28,965.60
  6. Step 6: Final answer
    x = 18,502.44

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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.