Home / 21,882.34-30,197.67-12,450.90

Finding the Fourth Proportional to 21,882.34, 30,197.67 and 12,450.90

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Solution

The fourth proportional to 21,882.34, 30,197.67 and 12,450.90 is: 17,182.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,882.34 : 30,197.67 = 12,450.90 : x
  2. Step 2: Convert to fraction form
    21,882.34/30,197.67 = 12,450.90/x
  3. Step 3: Cross multiply
    21,882.34x = 30,197.67 × 12,450.90
  4. Step 4: Simplify right side
    21,882.34x = 375,988,169.40
  5. Step 5: Solve for x
    x = 375,988,169.40/21,882.34
  6. Step 6: Final answer
    x = 17,182.27

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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.