Home / 21,404.19-29,537.88-11,972.76

Finding the Fourth Proportional to 21,404.19, 29,537.88 and 11,972.76

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Solution

The fourth proportional to 21,404.19, 29,537.88 and 11,972.76 is: 16,522.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,404.19 : 29,537.88 = 11,972.76 : x
  2. Step 2: Convert to fraction form
    21,404.19/29,537.88 = 11,972.76/x
  3. Step 3: Cross multiply
    21,404.19x = 29,537.88 × 11,972.76
  4. Step 4: Simplify right side
    21,404.19x = 353,649,948.15
  5. Step 5: Solve for x
    x = 353,649,948.15/21,404.19
  6. Step 6: Final answer
    x = 16,522.46

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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.