Home / 20,683.85-31,025.84-5,101.47

Finding the Fourth Proportional to 20,683.85, 31,025.84 and 5,101.47

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Solution

The fourth proportional to 20,683.85, 31,025.84 and 5,101.47 is: 7,652.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,683.85 : 31,025.84 = 5,101.47 : x
  2. Step 2: Convert to fraction form
    20,683.85/31,025.84 = 5,101.47/x
  3. Step 3: Cross multiply
    20,683.85x = 31,025.84 × 5,101.47
  4. Step 4: Simplify right side
    20,683.85x = 158,277,366.48
  5. Step 5: Solve for x
    x = 158,277,366.48/20,683.85
  6. Step 6: Final answer
    x = 7,652.22

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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.