Home / 21,997.22-30,349.03-12,436.19

Finding the Fourth Proportional to 21,997.22, 30,349.03 and 12,436.19

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Solution

The fourth proportional to 21,997.22, 30,349.03 and 12,436.19 is: 17,157.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,997.22 : 30,349.03 = 12,436.19 : x
  2. Step 2: Convert to fraction form
    21,997.22/30,349.03 = 12,436.19/x
  3. Step 3: Cross multiply
    21,997.22x = 30,349.03 × 12,436.19
  4. Step 4: Simplify right side
    21,997.22x = 377,426,089.47
  5. Step 5: Solve for x
    x = 377,426,089.47/21,997.22
  6. Step 6: Final answer
    x = 17,157.90

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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.