Home / 39,549.65-54,577.78-21,644.29

Finding the Fourth Proportional to 39,549.65, 54,577.78 and 21,644.29

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Solution

The fourth proportional to 39,549.65, 54,577.78 and 21,644.29 is: 29,868.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,549.65 : 54,577.78 = 21,644.29 : x
  2. Step 2: Convert to fraction form
    39,549.65/54,577.78 = 21,644.29/x
  3. Step 3: Cross multiply
    39,549.65x = 54,577.78 × 21,644.29
  4. Step 4: Simplify right side
    39,549.65x = 1,181,297,297.88
  5. Step 5: Solve for x
    x = 1,181,297,297.88/39,549.65
  6. Step 6: Final answer
    x = 29,868.72

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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.