Home / 21,653.25-32,386.05-12,747.36

Finding the Fourth Proportional to 21,653.25, 32,386.05 and 12,747.36

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Solution

The fourth proportional to 21,653.25, 32,386.05 and 12,747.36 is: 19,065.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,653.25 : 32,386.05 = 12,747.36 : x
  2. Step 2: Convert to fraction form
    21,653.25/32,386.05 = 12,747.36/x
  3. Step 3: Cross multiply
    21,653.25x = 32,386.05 × 12,747.36
  4. Step 4: Simplify right side
    21,653.25x = 412,836,638.33
  5. Step 5: Solve for x
    x = 412,836,638.33/21,653.25
  6. Step 6: Final answer
    x = 19,065.80

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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.