Home / 40,388.40-60,584.88-12,309.37

Finding the Fourth Proportional to 40,388.40, 60,584.88 and 12,309.37

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Solution

The fourth proportional to 40,388.40, 60,584.88 and 12,309.37 is: 18,464.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,388.40 : 60,584.88 = 12,309.37 : x
  2. Step 2: Convert to fraction form
    40,388.40/60,584.88 = 12,309.37/x
  3. Step 3: Cross multiply
    40,388.40x = 60,584.88 × 12,309.37
  4. Step 4: Simplify right side
    40,388.40x = 745,761,978.08
  5. Step 5: Solve for x
    x = 745,761,978.08/40,388.40
  6. Step 6: Final answer
    x = 18,464.76

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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.