Home / 21,760.67-30,029.67-12,329.23

Finding the Fourth Proportional to 21,760.67, 30,029.67 and 12,329.23

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Solution

The fourth proportional to 21,760.67, 30,029.67 and 12,329.23 is: 17,014.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,760.67 : 30,029.67 = 12,329.23 : x
  2. Step 2: Convert to fraction form
    21,760.67/30,029.67 = 12,329.23/x
  3. Step 3: Cross multiply
    21,760.67x = 30,029.67 × 12,329.23
  4. Step 4: Simplify right side
    21,760.67x = 370,242,708.25
  5. Step 5: Solve for x
    x = 370,242,708.25/21,760.67
  6. Step 6: Final answer
    x = 17,014.31

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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.