Home / 19,289.64-28,933.92-6,142.80

Finding the Fourth Proportional to 19,289.64, 28,933.92 and 6,142.80

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Solution

The fourth proportional to 19,289.64, 28,933.92 and 6,142.80 is: 9,214.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,289.64 : 28,933.92 = 6,142.80 : x
  2. Step 2: Convert to fraction form
    19,289.64/28,933.92 = 6,142.80/x
  3. Step 3: Cross multiply
    19,289.64x = 28,933.92 × 6,142.80
  4. Step 4: Simplify right side
    19,289.64x = 177,735,283.78
  5. Step 5: Solve for x
    x = 177,735,283.78/19,289.64
  6. Step 6: Final answer
    x = 9,214.03

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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.