Home / 22,611.22-31,195.09-13,655.45

Finding the Fourth Proportional to 22,611.22, 31,195.09 and 13,655.45

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Solution

The fourth proportional to 22,611.22, 31,195.09 and 13,655.45 is: 18,839.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,611.22 : 31,195.09 = 13,655.45 : x
  2. Step 2: Convert to fraction form
    22,611.22/31,195.09 = 13,655.45/x
  3. Step 3: Cross multiply
    22,611.22x = 31,195.09 × 13,655.45
  4. Step 4: Simplify right side
    22,611.22x = 425,983,086.80
  5. Step 5: Solve for x
    x = 425,983,086.80/22,611.22
  6. Step 6: Final answer
    x = 18,839.46

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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.