Home / 21,762,035.12-30,031,563.56-11,972,455.85

Finding the Fourth Proportional to 21,762,035.12, 30,031,563.56 and 11,972,455.85

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Solution

The fourth proportional to 21,762,035.12, 30,031,563.56 and 11,972,455.85 is: 16,521,964.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,762,035.12 : 30,031,563.56 = 11,972,455.85 : x
  2. Step 2: Convert to fraction form
    21,762,035.12/30,031,563.56 = 11,972,455.85/x
  3. Step 3: Cross multiply
    21,762,035.12x = 30,031,563.56 × 11,972,455.85
  4. Step 4: Simplify right side
    21,762,035.12x = 359,551,568,618,548.75
  5. Step 5: Solve for x
    x = 359,551,568,618,548.75/21,762,035.12
  6. Step 6: Final answer
    x = 16,521,964.36

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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.