Home / 21,604.51-29,819.78-14,069.62

Finding the Fourth Proportional to 21,604.51, 29,819.78 and 14,069.62

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Solution

The fourth proportional to 21,604.51, 29,819.78 and 14,069.62 is: 19,419.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,604.51 : 29,819.78 = 14,069.62 : x
  2. Step 2: Convert to fraction form
    21,604.51/29,819.78 = 14,069.62/x
  3. Step 3: Cross multiply
    21,604.51x = 29,819.78 × 14,069.62
  4. Step 4: Simplify right side
    21,604.51x = 419,552,973.08
  5. Step 5: Solve for x
    x = 419,552,973.08/21,604.51
  6. Step 6: Final answer
    x = 19,419.69

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1.5x scale

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.