Home / 21,654.90-29,880.74-12,093.45

Finding the Fourth Proportional to 21,654.90, 29,880.74 and 12,093.45

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Solution

The fourth proportional to 21,654.90, 29,880.74 and 12,093.45 is: 16,687.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,654.90 : 29,880.74 = 12,093.45 : x
  2. Step 2: Convert to fraction form
    21,654.90/29,880.74 = 12,093.45/x
  3. Step 3: Cross multiply
    21,654.90x = 29,880.74 × 12,093.45
  4. Step 4: Simplify right side
    21,654.90x = 361,361,174.69
  5. Step 5: Solve for x
    x = 361,361,174.69/21,654.90
  6. Step 6: Final answer
    x = 16,687.27

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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.