Home / 21,224.56-31,848.79-19,551.51

Finding the Fourth Proportional to 21,224.56, 31,848.79 and 19,551.51

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Solution

The fourth proportional to 21,224.56, 31,848.79 and 19,551.51 is: 29,338.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,224.56 : 31,848.79 = 19,551.51 : x
  2. Step 2: Convert to fraction form
    21,224.56/31,848.79 = 19,551.51/x
  3. Step 3: Cross multiply
    21,224.56x = 31,848.79 × 19,551.51
  4. Step 4: Simplify right side
    21,224.56x = 622,691,936.17
  5. Step 5: Solve for x
    x = 622,691,936.17/21,224.56
  6. Step 6: Final answer
    x = 29,338.27

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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.