Home / 20,821,255.72-28,733,326.50-11,653,896.04

Finding the Fourth Proportional to 20,821,255.72, 28,733,326.50 and 11,653,896.04

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Solution

The fourth proportional to 20,821,255.72, 28,733,326.50 and 11,653,896.04 is: 16,082,372.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,821,255.72 : 28,733,326.50 = 11,653,896.04 : x
  2. Step 2: Convert to fraction form
    20,821,255.72/28,733,326.50 = 11,653,896.04/x
  3. Step 3: Cross multiply
    20,821,255.72x = 28,733,326.50 × 11,653,896.04
  4. Step 4: Simplify right side
    20,821,255.72x = 334,855,199,914,377.06
  5. Step 5: Solve for x
    x = 334,855,199,914,377.06/20,821,255.72
  6. Step 6: Final answer
    x = 16,082,372.96

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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.