Home / 30,574.36-42,198.67-19,832.55

Finding the Fourth Proportional to 30,574.36, 42,198.67 and 19,832.55

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Solution

The fourth proportional to 30,574.36, 42,198.67 and 19,832.55 is: 27,372.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,574.36 : 42,198.67 = 19,832.55 : x
  2. Step 2: Convert to fraction form
    30,574.36/42,198.67 = 19,832.55/x
  3. Step 3: Cross multiply
    30,574.36x = 42,198.67 × 19,832.55
  4. Step 4: Simplify right side
    30,574.36x = 836,907,021.72
  5. Step 5: Solve for x
    x = 836,907,021.72/30,574.36
  6. Step 6: Final answer
    x = 27,372.84

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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.