Home / 21,991.97-33,032.24-13,124.63

Finding the Fourth Proportional to 21,991.97, 33,032.24 and 13,124.63

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Solution

The fourth proportional to 21,991.97, 33,032.24 and 13,124.63 is: 19,713.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,991.97 : 33,032.24 = 13,124.63 : x
  2. Step 2: Convert to fraction form
    21,991.97/33,032.24 = 13,124.63/x
  3. Step 3: Cross multiply
    21,991.97x = 33,032.24 × 13,124.63
  4. Step 4: Simplify right side
    21,991.97x = 433,535,697.29
  5. Step 5: Solve for x
    x = 433,535,697.29/21,991.97
  6. Step 6: Final answer
    x = 19,713.37

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.