Home / 21,997.41-30,349.29-12,436.37

Finding the Fourth Proportional to 21,997.41, 30,349.29 and 12,436.37

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Solution

The fourth proportional to 21,997.41, 30,349.29 and 12,436.37 is: 17,158.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,997.41 : 30,349.29 = 12,436.37 : x
  2. Step 2: Convert to fraction form
    21,997.41/30,349.29 = 12,436.37/x
  3. Step 3: Cross multiply
    21,997.41x = 30,349.29 × 12,436.37
  4. Step 4: Simplify right side
    21,997.41x = 377,434,999.68
  5. Step 5: Solve for x
    x = 377,434,999.68/21,997.41
  6. Step 6: Final answer
    x = 17,158.16

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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.