Home / 21,604.64-29,819.95-14,069.75

Finding the Fourth Proportional to 21,604.64, 29,819.95 and 14,069.75

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Solution

The fourth proportional to 21,604.64, 29,819.95 and 14,069.75 is: 19,419.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,604.64 : 29,819.95 = 14,069.75 : x
  2. Step 2: Convert to fraction form
    21,604.64/29,819.95 = 14,069.75/x
  3. Step 3: Cross multiply
    21,604.64x = 29,819.95 × 14,069.75
  4. Step 4: Simplify right side
    21,604.64x = 419,559,057.24
  5. Step 5: Solve for x
    x = 419,559,057.24/21,604.64
  6. Step 6: Final answer
    x = 19,419.86

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.