Home / 21,239,530.72-29,310,498.48-11,581,738.72

Finding the Fourth Proportional to 21,239,530.72, 29,310,498.48 and 11,581,738.72

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Solution

The fourth proportional to 21,239,530.72, 29,310,498.48 and 11,581,738.72 is: 15,982,770.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,239,530.72 : 29,310,498.48 = 11,581,738.72 : x
  2. Step 2: Convert to fraction form
    21,239,530.72/29,310,498.48 = 11,581,738.72/x
  3. Step 3: Cross multiply
    21,239,530.72x = 29,310,498.48 × 11,581,738.72
  4. Step 4: Simplify right side
    21,239,530.72x = 339,466,535,148,317.19
  5. Step 5: Solve for x
    x = 339,466,535,148,317.19/21,239,530.72
  6. Step 6: Final answer
    x = 15,982,770.03

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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.