Home / 21,369.69-29,481.57-14,203.08

Finding the Fourth Proportional to 21,369.69, 29,481.57 and 14,203.08

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Solution

The fourth proportional to 21,369.69, 29,481.57 and 14,203.08 is: 19,594.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,369.69 : 29,481.57 = 14,203.08 : x
  2. Step 2: Convert to fraction form
    21,369.69/29,481.57 = 14,203.08/x
  3. Step 3: Cross multiply
    21,369.69x = 29,481.57 × 14,203.08
  4. Step 4: Simplify right side
    21,369.69x = 418,729,097.24
  5. Step 5: Solve for x
    x = 418,729,097.24/21,369.69
  6. Step 6: Final answer
    x = 19,594.53

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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.