Home / 20,580.84-30,886.38-15,912.36

Finding the Fourth Proportional to 20,580.84, 30,886.38 and 15,912.36

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Solution

The fourth proportional to 20,580.84, 30,886.38 and 15,912.36 is: 23,880.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,580.84 : 30,886.38 = 15,912.36 : x
  2. Step 2: Convert to fraction form
    20,580.84/30,886.38 = 15,912.36/x
  3. Step 3: Cross multiply
    20,580.84x = 30,886.38 × 15,912.36
  4. Step 4: Simplify right side
    20,580.84x = 491,475,197.66
  5. Step 5: Solve for x
    x = 491,475,197.66/20,580.84
  6. Step 6: Final answer
    x = 23,880.23

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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.