Home / 22,261.59-30,720.96-12,190.03

Finding the Fourth Proportional to 22,261.59, 30,720.96 and 12,190.03

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Solution

The fourth proportional to 22,261.59, 30,720.96 and 12,190.03 is: 16,822.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,261.59 : 30,720.96 = 12,190.03 : x
  2. Step 2: Convert to fraction form
    22,261.59/30,720.96 = 12,190.03/x
  3. Step 3: Cross multiply
    22,261.59x = 30,720.96 × 12,190.03
  4. Step 4: Simplify right side
    22,261.59x = 374,489,347.23
  5. Step 5: Solve for x
    x = 374,489,347.23/22,261.59
  6. Step 6: Final answer
    x = 16,822.22

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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.