Home / 20,289.38-30,430.43-9,194

Finding the Fourth Proportional to 20,289.38, 30,430.43 and 9,194

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Solution

The fourth proportional to 20,289.38, 30,430.43 and 9,194 is: 13,789.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,289.38 : 30,430.43 = 9,194 : x
  2. Step 2: Convert to fraction form
    20,289.38/30,430.43 = 9,194/x
  3. Step 3: Cross multiply
    20,289.38x = 30,430.43 × 9,194
  4. Step 4: Simplify right side
    20,289.38x = 279,777,327.45
  5. Step 5: Solve for x
    x = 279,777,327.45/20,289.38
  6. Step 6: Final answer
    x = 13,789.35

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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.