Home / 21,438.06-29,566.24-16,954.03

Finding the Fourth Proportional to 21,438.06, 29,566.24 and 16,954.03

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Solution

The fourth proportional to 21,438.06, 29,566.24 and 16,954.03 is: 23,382.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,438.06 : 29,566.24 = 16,954.03 : x
  2. Step 2: Convert to fraction form
    21,438.06/29,566.24 = 16,954.03/x
  3. Step 3: Cross multiply
    21,438.06x = 29,566.24 × 16,954.03
  4. Step 4: Simplify right side
    21,438.06x = 501,266,919.95
  5. Step 5: Solve for x
    x = 501,266,919.95/21,438.06
  6. Step 6: Final answer
    x = 23,382.10

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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.