Home / 13,923.78-20,881.58-4,059.96

Finding the Fourth Proportional to 13,923.78, 20,881.58 and 4,059.96

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Solution

The fourth proportional to 13,923.78, 20,881.58 and 4,059.96 is: 6,088.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,923.78 : 20,881.58 = 4,059.96 : x
  2. Step 2: Convert to fraction form
    13,923.78/20,881.58 = 4,059.96/x
  3. Step 3: Cross multiply
    13,923.78x = 20,881.58 × 4,059.96
  4. Step 4: Simplify right side
    13,923.78x = 84,778,359.24
  5. Step 5: Solve for x
    x = 84,778,359.24/13,923.78
  6. Step 6: Final answer
    x = 6,088.75

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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.