Home / 30,150.26-45,236.19-10,430.78

Finding the Fourth Proportional to 30,150.26, 45,236.19 and 10,430.78

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Solution

The fourth proportional to 30,150.26, 45,236.19 and 10,430.78 is: 15,649.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,150.26 : 45,236.19 = 10,430.78 : x
  2. Step 2: Convert to fraction form
    30,150.26/45,236.19 = 10,430.78/x
  3. Step 3: Cross multiply
    30,150.26x = 45,236.19 × 10,430.78
  4. Step 4: Simplify right side
    30,150.26x = 471,848,745.93
  5. Step 5: Solve for x
    x = 471,848,745.93/30,150.26
  6. Step 6: Final answer
    x = 15,649.91

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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.