Home / 21,394.29-29,525.70-12,321.23

Finding the Fourth Proportional to 21,394.29, 29,525.70 and 12,321.23

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Solution

The fourth proportional to 21,394.29, 29,525.70 and 12,321.23 is: 17,004.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,394.29 : 29,525.70 = 12,321.23 : x
  2. Step 2: Convert to fraction form
    21,394.29/29,525.70 = 12,321.23/x
  3. Step 3: Cross multiply
    21,394.29x = 29,525.70 × 12,321.23
  4. Step 4: Simplify right side
    21,394.29x = 363,792,792.98
  5. Step 5: Solve for x
    x = 363,792,792.98/21,394.29
  6. Step 6: Final answer
    x = 17,004.20

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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.