Home / 21,450.45-29,601.62-13,066.95

Finding the Fourth Proportional to 21,450.45, 29,601.62 and 13,066.95

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Solution

The fourth proportional to 21,450.45, 29,601.62 and 13,066.95 is: 18,032.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,450.45 : 29,601.62 = 13,066.95 : x
  2. Step 2: Convert to fraction form
    21,450.45/29,601.62 = 13,066.95/x
  3. Step 3: Cross multiply
    21,450.45x = 29,601.62 × 13,066.95
  4. Step 4: Simplify right side
    21,450.45x = 386,802,788.49
  5. Step 5: Solve for x
    x = 386,802,788.49/21,450.45
  6. Step 6: Final answer
    x = 18,032.39

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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.