Home / 20,529.13-30,716.81-14,619.68

Finding the Fourth Proportional to 20,529.13, 30,716.81 and 14,619.68

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Solution

The fourth proportional to 20,529.13, 30,716.81 and 14,619.68 is: 21,874.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,529.13 : 30,716.81 = 14,619.68 : x
  2. Step 2: Convert to fraction form
    20,529.13/30,716.81 = 14,619.68/x
  3. Step 3: Cross multiply
    20,529.13x = 30,716.81 × 14,619.68
  4. Step 4: Simplify right side
    20,529.13x = 449,069,932.82
  5. Step 5: Solve for x
    x = 449,069,932.82/20,529.13
  6. Step 6: Final answer
    x = 21,874.77

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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.