Home / 20,845.53-31,268.49-5,263.14

Finding the Fourth Proportional to 20,845.53, 31,268.49 and 5,263.14

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Solution

The fourth proportional to 20,845.53, 31,268.49 and 5,263.14 is: 7,894.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,845.53 : 31,268.49 = 5,263.14 : x
  2. Step 2: Convert to fraction form
    20,845.53/31,268.49 = 5,263.14/x
  3. Step 3: Cross multiply
    20,845.53x = 31,268.49 × 5,263.14
  4. Step 4: Simplify right side
    20,845.53x = 164,570,440.46
  5. Step 5: Solve for x
    x = 164,570,440.46/20,845.53
  6. Step 6: Final answer
    x = 7,894.76

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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.