Home / 40,363.60-60,558.38-12,289.09

Finding the Fourth Proportional to 40,363.60, 60,558.38 and 12,289.09

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Solution

The fourth proportional to 40,363.60, 60,558.38 and 12,289.09 is: 18,437.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,363.60 : 60,558.38 = 12,289.09 : x
  2. Step 2: Convert to fraction form
    40,363.60/60,558.38 = 12,289.09/x
  3. Step 3: Cross multiply
    40,363.60x = 60,558.38 × 12,289.09
  4. Step 4: Simplify right side
    40,363.60x = 744,207,464.62
  5. Step 5: Solve for x
    x = 744,207,464.62/40,363.60
  6. Step 6: Final answer
    x = 18,437.59

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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.