Home / 30,622.80-42,256.32-17,195.54

Finding the Fourth Proportional to 30,622.80, 42,256.32 and 17,195.54

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Solution

The fourth proportional to 30,622.80, 42,256.32 and 17,195.54 is: 23,728.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,622.80 : 42,256.32 = 17,195.54 : x
  2. Step 2: Convert to fraction form
    30,622.80/42,256.32 = 17,195.54/x
  3. Step 3: Cross multiply
    30,622.80x = 42,256.32 × 17,195.54
  4. Step 4: Simplify right side
    30,622.80x = 726,620,029.53
  5. Step 5: Solve for x
    x = 726,620,029.53/30,622.80
  6. Step 6: Final answer
    x = 23,728.07

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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.