Home / 20,946.53-31,419.93-6,155.66

Finding the Fourth Proportional to 20,946.53, 31,419.93 and 6,155.66

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Solution

The fourth proportional to 20,946.53, 31,419.93 and 6,155.66 is: 9,233.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,946.53 : 31,419.93 = 6,155.66 : x
  2. Step 2: Convert to fraction form
    20,946.53/31,419.93 = 6,155.66/x
  3. Step 3: Cross multiply
    20,946.53x = 31,419.93 × 6,155.66
  4. Step 4: Simplify right side
    20,946.53x = 193,410,507.94
  5. Step 5: Solve for x
    x = 193,410,507.94/20,946.53
  6. Step 6: Final answer
    x = 9,233.53

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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.