Home / 35,521.44-49,010.82-21,720.30

Finding the Fourth Proportional to 35,521.44, 49,010.82 and 21,720.30

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Solution

The fourth proportional to 35,521.44, 49,010.82 and 21,720.30 is: 29,968.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,521.44 : 49,010.82 = 21,720.30 : x
  2. Step 2: Convert to fraction form
    35,521.44/49,010.82 = 21,720.30/x
  3. Step 3: Cross multiply
    35,521.44x = 49,010.82 × 21,720.30
  4. Step 4: Simplify right side
    35,521.44x = 1,064,529,713.65
  5. Step 5: Solve for x
    x = 1,064,529,713.65/35,521.44
  6. Step 6: Final answer
    x = 29,968.65

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1.5x scale

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.