Home / 21,559.23-29,745.90-12,608.94

Finding the Fourth Proportional to 21,559.23, 29,745.90 and 12,608.94

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Solution

The fourth proportional to 21,559.23, 29,745.90 and 12,608.94 is: 17,396.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,559.23 : 29,745.90 = 12,608.94 : x
  2. Step 2: Convert to fraction form
    21,559.23/29,745.90 = 12,608.94/x
  3. Step 3: Cross multiply
    21,559.23x = 29,745.90 × 12,608.94
  4. Step 4: Simplify right side
    21,559.23x = 375,064,268.35
  5. Step 5: Solve for x
    x = 375,064,268.35/21,559.23
  6. Step 6: Final answer
    x = 17,396.92

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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.