Home / 20,683.83-31,016.55-5,889.39

Finding the Fourth Proportional to 20,683.83, 31,016.55 and 5,889.39

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Solution

The fourth proportional to 20,683.83, 31,016.55 and 5,889.39 is: 8,831.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,683.83 : 31,016.55 = 5,889.39 : x
  2. Step 2: Convert to fraction form
    20,683.83/31,016.55 = 5,889.39/x
  3. Step 3: Cross multiply
    20,683.83x = 31,016.55 × 5,889.39
  4. Step 4: Simplify right side
    20,683.83x = 182,668,559.40
  5. Step 5: Solve for x
    x = 182,668,559.40/20,683.83
  6. Step 6: Final answer
    x = 8,831.47

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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.