Home / 21,313.98-29,412.61-11,754.27

Finding the Fourth Proportional to 21,313.98, 29,412.61 and 11,754.27

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Solution

The fourth proportional to 21,313.98, 29,412.61 and 11,754.27 is: 16,220.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,313.98 : 29,412.61 = 11,754.27 : x
  2. Step 2: Convert to fraction form
    21,313.98/29,412.61 = 11,754.27/x
  3. Step 3: Cross multiply
    21,313.98x = 29,412.61 × 11,754.27
  4. Step 4: Simplify right side
    21,313.98x = 345,723,729.96
  5. Step 5: Solve for x
    x = 345,723,729.96/21,313.98
  6. Step 6: Final answer
    x = 16,220.51

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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.