Home / 22,021.72-30,389.70-11,950.12

Finding the Fourth Proportional to 22,021.72, 30,389.70 and 11,950.12

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Solution

The fourth proportional to 22,021.72, 30,389.70 and 11,950.12 is: 16,491.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,021.72 : 30,389.70 = 11,950.12 : x
  2. Step 2: Convert to fraction form
    22,021.72/30,389.70 = 11,950.12/x
  3. Step 3: Cross multiply
    22,021.72x = 30,389.70 × 11,950.12
  4. Step 4: Simplify right side
    22,021.72x = 363,160,561.76
  5. Step 5: Solve for x
    x = 363,160,561.76/22,021.72
  6. Step 6: Final answer
    x = 16,491.02

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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.