Home / 21,954.10-30,296.72-11,882.53

Finding the Fourth Proportional to 21,954.10, 30,296.72 and 11,882.53

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Solution

The fourth proportional to 21,954.10, 30,296.72 and 11,882.53 is: 16,397.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,954.10 : 30,296.72 = 11,882.53 : x
  2. Step 2: Convert to fraction form
    21,954.10/30,296.72 = 11,882.53/x
  3. Step 3: Cross multiply
    21,954.10x = 30,296.72 × 11,882.53
  4. Step 4: Simplify right side
    21,954.10x = 360,001,684.30
  5. Step 5: Solve for x
    x = 360,001,684.30/21,954.10
  6. Step 6: Final answer
    x = 16,397.92

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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.