Home / 13,881.51-20,822.27-4,020.80

Finding the Fourth Proportional to 13,881.51, 20,822.27 and 4,020.80

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Solution

The fourth proportional to 13,881.51, 20,822.27 and 4,020.80 is: 6,031.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,881.51 : 20,822.27 = 4,020.80 : x
  2. Step 2: Convert to fraction form
    13,881.51/20,822.27 = 4,020.80/x
  3. Step 3: Cross multiply
    13,881.51x = 20,822.27 × 4,020.80
  4. Step 4: Simplify right side
    13,881.51x = 83,722,099.09
  5. Step 5: Solve for x
    x = 83,722,099.09/13,881.51
  6. Step 6: Final answer
    x = 6,031.19

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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.