Home / 30,081.45-45,122.19-19,004.97

Finding the Fourth Proportional to 30,081.45, 45,122.19 and 19,004.97

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Solution

The fourth proportional to 30,081.45, 45,122.19 and 19,004.97 is: 28,507.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,081.45 : 45,122.19 = 19,004.97 : x
  2. Step 2: Convert to fraction form
    30,081.45/45,122.19 = 19,004.97/x
  3. Step 3: Cross multiply
    30,081.45x = 45,122.19 × 19,004.97
  4. Step 4: Simplify right side
    30,081.45x = 857,545,867.28
  5. Step 5: Solve for x
    x = 857,545,867.28/30,081.45
  6. Step 6: Final answer
    x = 28,507.46

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.