Home / 21,677.73-29,915.26-12,725.23

Finding the Fourth Proportional to 21,677.73, 29,915.26 and 12,725.23

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Solution

The fourth proportional to 21,677.73, 29,915.26 and 12,725.23 is: 17,560.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,677.73 : 29,915.26 = 12,725.23 : x
  2. Step 2: Convert to fraction form
    21,677.73/29,915.26 = 12,725.23/x
  3. Step 3: Cross multiply
    21,677.73x = 29,915.26 × 12,725.23
  4. Step 4: Simplify right side
    21,677.73x = 380,678,564.01
  5. Step 5: Solve for x
    x = 380,678,564.01/21,677.73
  6. Step 6: Final answer
    x = 17,560.81

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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.