Home / 21,991.14-30,362.78-14,044.13

Finding the Fourth Proportional to 21,991.14, 30,362.78 and 14,044.13

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Solution

The fourth proportional to 21,991.14, 30,362.78 and 14,044.13 is: 19,390.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,991.14 : 30,362.78 = 14,044.13 : x
  2. Step 2: Convert to fraction form
    21,991.14/30,362.78 = 14,044.13/x
  3. Step 3: Cross multiply
    21,991.14x = 30,362.78 × 14,044.13
  4. Step 4: Simplify right side
    21,991.14x = 426,418,829.48
  5. Step 5: Solve for x
    x = 426,418,829.48/21,991.14
  6. Step 6: Final answer
    x = 19,390.48

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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.