Home / 21,404.04-29,537.14-11,972.68

Finding the Fourth Proportional to 21,404.04, 29,537.14 and 11,972.68

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Solution

The fourth proportional to 21,404.04, 29,537.14 and 11,972.68 is: 16,522.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,404.04 : 29,537.14 = 11,972.68 : x
  2. Step 2: Convert to fraction form
    21,404.04/29,537.14 = 11,972.68/x
  3. Step 3: Cross multiply
    21,404.04x = 29,537.14 × 11,972.68
  4. Step 4: Simplify right side
    21,404.04x = 353,638,725.34
  5. Step 5: Solve for x
    x = 353,638,725.34/21,404.04
  6. Step 6: Final answer
    x = 16,522.05

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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.