Home / 30,494.39-42,087.03-19,165.43

Finding the Fourth Proportional to 30,494.39, 42,087.03 and 19,165.43

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Solution

The fourth proportional to 30,494.39, 42,087.03 and 19,165.43 is: 26,451.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,494.39 : 42,087.03 = 19,165.43 : x
  2. Step 2: Convert to fraction form
    30,494.39/42,087.03 = 19,165.43/x
  3. Step 3: Cross multiply
    30,494.39x = 42,087.03 × 19,165.43
  4. Step 4: Simplify right side
    30,494.39x = 806,616,027.37
  5. Step 5: Solve for x
    x = 806,616,027.37/30,494.39
  6. Step 6: Final answer
    x = 26,451.29

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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.