Home / 21,621,124.82-29,837,155.12-11,831,571.12

Finding the Fourth Proportional to 21,621,124.82, 29,837,155.12 and 11,831,571.12

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Solution

The fourth proportional to 21,621,124.82, 29,837,155.12 and 11,831,571.12 is: 16,327,569.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,621,124.82 : 29,837,155.12 = 11,831,571.12 : x
  2. Step 2: Convert to fraction form
    21,621,124.82/29,837,155.12 = 11,831,571.12/x
  3. Step 3: Cross multiply
    21,621,124.82x = 29,837,155.12 × 11,831,571.12
  4. Step 4: Simplify right side
    21,621,124.82x = 353,020,422,820,752.12
  5. Step 5: Solve for x
    x = 353,020,422,820,752.12/21,621,124.82
  6. Step 6: Final answer
    x = 16,327,569.72

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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.