Home / 30,121.37-45,182.51-11,410.07

Finding the Fourth Proportional to 30,121.37, 45,182.51 and 11,410.07

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Solution

The fourth proportional to 30,121.37, 45,182.51 and 11,410.07 is: 17,115.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,121.37 : 45,182.51 = 11,410.07 : x
  2. Step 2: Convert to fraction form
    30,121.37/45,182.51 = 11,410.07/x
  3. Step 3: Cross multiply
    30,121.37x = 45,182.51 × 11,410.07
  4. Step 4: Simplify right side
    30,121.37x = 515,535,361.70
  5. Step 5: Solve for x
    x = 515,535,361.70/30,121.37
  6. Step 6: Final answer
    x = 17,115.27

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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.