Home / 19,134.28-28,701.19-5,986.31

Finding the Fourth Proportional to 19,134.28, 28,701.19 and 5,986.31

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Solution

The fourth proportional to 19,134.28, 28,701.19 and 5,986.31 is: 8,979.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,134.28 : 28,701.19 = 5,986.31 : x
  2. Step 2: Convert to fraction form
    19,134.28/28,701.19 = 5,986.31/x
  3. Step 3: Cross multiply
    19,134.28x = 28,701.19 × 5,986.31
  4. Step 4: Simplify right side
    19,134.28x = 171,814,051.01
  5. Step 5: Solve for x
    x = 171,814,051.01/19,134.28
  6. Step 6: Final answer
    x = 8,979.39

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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.