Home / 22,013.99-30,379.29-11,942.45

Finding the Fourth Proportional to 22,013.99, 30,379.29 and 11,942.45

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Solution

The fourth proportional to 22,013.99, 30,379.29 and 11,942.45 is: 16,480.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,013.99 : 30,379.29 = 11,942.45 : x
  2. Step 2: Convert to fraction form
    22,013.99/30,379.29 = 11,942.45/x
  3. Step 3: Cross multiply
    22,013.99x = 30,379.29 × 11,942.45
  4. Step 4: Simplify right side
    22,013.99x = 362,803,069.10
  5. Step 5: Solve for x
    x = 362,803,069.10/22,013.99
  6. Step 6: Final answer
    x = 16,480.57

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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.