Home / 21,314.23-29,412.96-11,754.52

Finding the Fourth Proportional to 21,314.23, 29,412.96 and 11,754.52

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Solution

The fourth proportional to 21,314.23, 29,412.96 and 11,754.52 is: 16,220.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,314.23 : 29,412.96 = 11,754.52 : x
  2. Step 2: Convert to fraction form
    21,314.23/29,412.96 = 11,754.52/x
  3. Step 3: Cross multiply
    21,314.23x = 29,412.96 × 11,754.52
  4. Step 4: Simplify right side
    21,314.23x = 345,735,153.05
  5. Step 5: Solve for x
    x = 345,735,153.05/21,314.23
  6. Step 6: Final answer
    x = 16,220.86

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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.