Home / 36,990.78-51,047.19-21,074.82

Finding the Fourth Proportional to 36,990.78, 51,047.19 and 21,074.82

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Solution

The fourth proportional to 36,990.78, 51,047.19 and 21,074.82 is: 29,083.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,990.78 : 51,047.19 = 21,074.82 : x
  2. Step 2: Convert to fraction form
    36,990.78/51,047.19 = 21,074.82/x
  3. Step 3: Cross multiply
    36,990.78x = 51,047.19 × 21,074.82
  4. Step 4: Simplify right side
    36,990.78x = 1,075,810,340.76
  5. Step 5: Solve for x
    x = 1,075,810,340.76/36,990.78
  6. Step 6: Final answer
    x = 29,083.20

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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.