Home / 13,881.28-20,817.60-4,021.24

Finding the Fourth Proportional to 13,881.28, 20,817.60 and 4,021.24

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Solution

The fourth proportional to 13,881.28, 20,817.60 and 4,021.24 is: 6,030.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,881.28 : 20,817.60 = 4,021.24 : x
  2. Step 2: Convert to fraction form
    13,881.28/20,817.60 = 4,021.24/x
  3. Step 3: Cross multiply
    13,881.28x = 20,817.60 × 4,021.24
  4. Step 4: Simplify right side
    13,881.28x = 83,712,565.82
  5. Step 5: Solve for x
    x = 83,712,565.82/13,881.28
  6. Step 6: Final answer
    x = 6,030.61

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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.