Home / 20,821,256.72-28,733,327.88-11,653,897.04

Finding the Fourth Proportional to 20,821,256.72, 28,733,327.88 and 11,653,897.04

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Solution

The fourth proportional to 20,821,256.72, 28,733,327.88 and 11,653,897.04 is: 16,082,374.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,821,256.72 : 28,733,327.88 = 11,653,897.04 : x
  2. Step 2: Convert to fraction form
    20,821,256.72/28,733,327.88 = 11,653,897.04/x
  3. Step 3: Cross multiply
    20,821,256.72x = 28,733,327.88 × 11,653,897.04
  4. Step 4: Simplify right side
    20,821,256.72x = 334,855,244,730,081.44
  5. Step 5: Solve for x
    x = 334,855,244,730,081.44/20,821,256.72
  6. Step 6: Final answer
    x = 16,082,374.34

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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.