Home / 21,963.73-30,317.35-13,349.89

Finding the Fourth Proportional to 21,963.73, 30,317.35 and 13,349.89

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Solution

The fourth proportional to 21,963.73, 30,317.35 and 13,349.89 is: 18,427.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,963.73 : 30,317.35 = 13,349.89 : x
  2. Step 2: Convert to fraction form
    21,963.73/30,317.35 = 13,349.89/x
  3. Step 3: Cross multiply
    21,963.73x = 30,317.35 × 13,349.89
  4. Step 4: Simplify right side
    21,963.73x = 404,733,250.65
  5. Step 5: Solve for x
    x = 404,733,250.65/21,963.73
  6. Step 6: Final answer
    x = 18,427.34

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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.