Home / 21,401.88-29,537.82-12,325.56

Finding the Fourth Proportional to 21,401.88, 29,537.82 and 12,325.56

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Solution

The fourth proportional to 21,401.88, 29,537.82 and 12,325.56 is: 17,011.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,401.88 : 29,537.82 = 12,325.56 : x
  2. Step 2: Convert to fraction form
    21,401.88/29,537.82 = 12,325.56/x
  3. Step 3: Cross multiply
    21,401.88x = 29,537.82 × 12,325.56
  4. Step 4: Simplify right side
    21,401.88x = 364,070,172.68
  5. Step 5: Solve for x
    x = 364,070,172.68/21,401.88
  6. Step 6: Final answer
    x = 17,011.13

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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.