Home / 30,032.22-41,435.37-20,957.34

Finding the Fourth Proportional to 30,032.22, 41,435.37 and 20,957.34

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Solution

The fourth proportional to 30,032.22, 41,435.37 and 20,957.34 is: 28,914.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,032.22 : 41,435.37 = 20,957.34 : x
  2. Step 2: Convert to fraction form
    30,032.22/41,435.37 = 20,957.34/x
  3. Step 3: Cross multiply
    30,032.22x = 41,435.37 × 20,957.34
  4. Step 4: Simplify right side
    30,032.22x = 868,375,137.12
  5. Step 5: Solve for x
    x = 868,375,137.12/30,032.22
  6. Step 6: Final answer
    x = 28,914.78

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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.