Home / 13,881.30-20,824.65-4,020.90

Finding the Fourth Proportional to 13,881.30, 20,824.65 and 4,020.90

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Solution

The fourth proportional to 13,881.30, 20,824.65 and 4,020.90 is: 6,032.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,881.30 : 20,824.65 = 4,020.90 : x
  2. Step 2: Convert to fraction form
    13,881.30/20,824.65 = 4,020.90/x
  3. Step 3: Cross multiply
    13,881.30x = 20,824.65 × 4,020.90
  4. Step 4: Simplify right side
    13,881.30x = 83,733,835.19
  5. Step 5: Solve for x
    x = 83,733,835.19/13,881.30
  6. Step 6: Final answer
    x = 6,032.13

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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.