Home / 21,281.78-31,936.44-9,594.29

Finding the Fourth Proportional to 21,281.78, 31,936.44 and 9,594.29

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Solution

The fourth proportional to 21,281.78, 31,936.44 and 9,594.29 is: 14,397.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,281.78 : 31,936.44 = 9,594.29 : x
  2. Step 2: Convert to fraction form
    21,281.78/31,936.44 = 9,594.29/x
  3. Step 3: Cross multiply
    21,281.78x = 31,936.44 × 9,594.29
  4. Step 4: Simplify right side
    21,281.78x = 306,407,466.93
  5. Step 5: Solve for x
    x = 306,407,466.93/21,281.78
  6. Step 6: Final answer
    x = 14,397.64

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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.