Home / 43,190.40-64,788.71-15,107.30

Finding the Fourth Proportional to 43,190.40, 64,788.71 and 15,107.30

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Solution

The fourth proportional to 43,190.40, 64,788.71 and 15,107.30 is: 22,662.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,190.40 : 64,788.71 = 15,107.30 : x
  2. Step 2: Convert to fraction form
    43,190.40/64,788.71 = 15,107.30/x
  3. Step 3: Cross multiply
    43,190.40x = 64,788.71 × 15,107.30
  4. Step 4: Simplify right side
    43,190.40x = 978,782,478.58
  5. Step 5: Solve for x
    x = 978,782,478.58/43,190.40
  6. Step 6: Final answer
    x = 22,662.04

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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.