Home / 30,621.80-42,254.94-17,194.54

Finding the Fourth Proportional to 30,621.80, 42,254.94 and 17,194.54

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Solution

The fourth proportional to 30,621.80, 42,254.94 and 17,194.54 is: 23,726.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,621.80 : 42,254.94 = 17,194.54 : x
  2. Step 2: Convert to fraction form
    30,621.80/42,254.94 = 17,194.54/x
  3. Step 3: Cross multiply
    30,621.80x = 42,254.94 × 17,194.54
  4. Step 4: Simplify right side
    30,621.80x = 726,554,256.03
  5. Step 5: Solve for x
    x = 726,554,256.03/30,621.80
  6. Step 6: Final answer
    x = 23,726.70

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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.