Home / 13,881.88-20,826.06-4,021.36

Finding the Fourth Proportional to 13,881.88, 20,826.06 and 4,021.36

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Solution

The fourth proportional to 13,881.88, 20,826.06 and 4,021.36 is: 6,032.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,881.88 : 20,826.06 = 4,021.36 : x
  2. Step 2: Convert to fraction form
    13,881.88/20,826.06 = 4,021.36/x
  3. Step 3: Cross multiply
    13,881.88x = 20,826.06 × 4,021.36
  4. Step 4: Simplify right side
    13,881.88x = 83,749,084.64
  5. Step 5: Solve for x
    x = 83,749,084.64/13,881.88
  6. Step 6: Final answer
    x = 6,032.98

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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.