Home / 28,822.05-39,799.22-18,230.49

Finding the Fourth Proportional to 28,822.05, 39,799.22 and 18,230.49

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Solution

The fourth proportional to 28,822.05, 39,799.22 and 18,230.49 is: 25,173.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,822.05 : 39,799.22 = 18,230.49 : x
  2. Step 2: Convert to fraction form
    28,822.05/39,799.22 = 18,230.49/x
  3. Step 3: Cross multiply
    28,822.05x = 39,799.22 × 18,230.49
  4. Step 4: Simplify right side
    28,822.05x = 725,559,191.07
  5. Step 5: Solve for x
    x = 725,559,191.07/28,822.05
  6. Step 6: Final answer
    x = 25,173.75

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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.