Home / 21,654.09-29,882.03-12,223.53

Finding the Fourth Proportional to 21,654.09, 29,882.03 and 12,223.53

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Solution

The fourth proportional to 21,654.09, 29,882.03 and 12,223.53 is: 16,868.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,654.09 : 29,882.03 = 12,223.53 : x
  2. Step 2: Convert to fraction form
    21,654.09/29,882.03 = 12,223.53/x
  3. Step 3: Cross multiply
    21,654.09x = 29,882.03 × 12,223.53
  4. Step 4: Simplify right side
    21,654.09x = 365,263,771.31
  5. Step 5: Solve for x
    x = 365,263,771.31/21,654.09
  6. Step 6: Final answer
    x = 16,868.12

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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.