Home / 20,713.60-31,035.84-14,546.56

Finding the Fourth Proportional to 20,713.60, 31,035.84 and 14,546.56

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Solution

The fourth proportional to 20,713.60, 31,035.84 and 14,546.56 is: 21,795.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,713.60 : 31,035.84 = 14,546.56 : x
  2. Step 2: Convert to fraction form
    20,713.60/31,035.84 = 14,546.56/x
  3. Step 3: Cross multiply
    20,713.60x = 31,035.84 × 14,546.56
  4. Step 4: Simplify right side
    20,713.60x = 451,464,708.71
  5. Step 5: Solve for x
    x = 451,464,708.71/20,713.60
  6. Step 6: Final answer
    x = 21,795.57

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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.