Home / 13,880.88-20,824.56-4,020.36

Finding the Fourth Proportional to 13,880.88, 20,824.56 and 4,020.36

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Solution

The fourth proportional to 13,880.88, 20,824.56 and 4,020.36 is: 6,031.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,880.88 : 20,824.56 = 4,020.36 : x
  2. Step 2: Convert to fraction form
    13,880.88/20,824.56 = 4,020.36/x
  3. Step 3: Cross multiply
    13,880.88x = 20,824.56 × 4,020.36
  4. Step 4: Simplify right side
    13,880.88x = 83,722,228.04
  5. Step 5: Solve for x
    x = 83,722,228.04/13,880.88
  6. Step 6: Final answer
    x = 6,031.48

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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.