Home / 36,990.90-51,043.92-21,074.94

Finding the Fourth Proportional to 36,990.90, 51,043.92 and 21,074.94

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Solution

The fourth proportional to 36,990.90, 51,043.92 and 21,074.94 is: 29,081.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,990.90 : 51,043.92 = 21,074.94 : x
  2. Step 2: Convert to fraction form
    36,990.90/51,043.92 = 21,074.94/x
  3. Step 3: Cross multiply
    36,990.90x = 51,043.92 × 21,074.94
  4. Step 4: Simplify right side
    36,990.90x = 1,075,747,551.36
  5. Step 5: Solve for x
    x = 1,075,747,551.36/36,990.90
  6. Step 6: Final answer
    x = 29,081.41

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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.