Home / 21,405,744.61-29,539,947.59-12,238,579.33

Finding the Fourth Proportional to 21,405,744.61, 29,539,947.59 and 12,238,579.33

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Solution

The fourth proportional to 21,405,744.61, 29,539,947.59 and 12,238,579.33 is: 16,889,250.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,405,744.61 : 29,539,947.59 = 12,238,579.33 : x
  2. Step 2: Convert to fraction form
    21,405,744.61/29,539,947.59 = 12,238,579.33/x
  3. Step 3: Cross multiply
    21,405,744.61x = 29,539,947.59 × 12,238,579.33
  4. Step 4: Simplify right side
    21,405,744.61x = 361,526,991,923,064.44
  5. Step 5: Solve for x
    x = 361,526,991,923,064.44/21,405,744.61
  6. Step 6: Final answer
    x = 16,889,250.92

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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.