Home / 21,053,834.79-29,052,670.46-11,887,382.31

Finding the Fourth Proportional to 21,053,834.79, 29,052,670.46 and 11,887,382.31

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Solution

The fourth proportional to 21,053,834.79, 29,052,670.46 and 11,887,382.31 is: 16,403,672.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,053,834.79 : 29,052,670.46 = 11,887,382.31 : x
  2. Step 2: Convert to fraction form
    21,053,834.79/29,052,670.46 = 11,887,382.31/x
  3. Step 3: Cross multiply
    21,053,834.79x = 29,052,670.46 × 11,887,382.31
  4. Step 4: Simplify right side
    21,053,834.79x = 345,360,200,825,026.62
  5. Step 5: Solve for x
    x = 345,360,200,825,026.62/21,053,834.79
  6. Step 6: Final answer
    x = 16,403,672.03

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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.