Home / 30,250.25-41,749.70-18,151.28

Finding the Fourth Proportional to 30,250.25, 41,749.70 and 18,151.28

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Solution

The fourth proportional to 30,250.25, 41,749.70 and 18,151.28 is: 25,051.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,250.25 : 41,749.70 = 18,151.28 : x
  2. Step 2: Convert to fraction form
    30,250.25/41,749.70 = 18,151.28/x
  3. Step 3: Cross multiply
    30,250.25x = 41,749.70 × 18,151.28
  4. Step 4: Simplify right side
    30,250.25x = 757,810,195.11
  5. Step 5: Solve for x
    x = 757,810,195.11/30,250.25
  6. Step 6: Final answer
    x = 25,051.37

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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.