Home / 21,164.34-31,751.80-14,936.51

Finding the Fourth Proportional to 21,164.34, 31,751.80 and 14,936.51

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Solution

The fourth proportional to 21,164.34, 31,751.80 and 14,936.51 is: 22,408.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,164.34 : 31,751.80 = 14,936.51 : x
  2. Step 2: Convert to fraction form
    21,164.34/31,751.80 = 14,936.51/x
  3. Step 3: Cross multiply
    21,164.34x = 31,751.80 × 14,936.51
  4. Step 4: Simplify right side
    21,164.34x = 474,261,078.22
  5. Step 5: Solve for x
    x = 474,261,078.22/21,164.34
  6. Step 6: Final answer
    x = 22,408.50

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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.