Home / 38,106.56-57,173.59-20,318.51

Finding the Fourth Proportional to 38,106.56, 57,173.59 and 20,318.51

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Solution

The fourth proportional to 38,106.56, 57,173.59 and 20,318.51 is: 30,485.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,106.56 : 57,173.59 = 20,318.51 : x
  2. Step 2: Convert to fraction form
    38,106.56/57,173.59 = 20,318.51/x
  3. Step 3: Cross multiply
    38,106.56x = 57,173.59 × 20,318.51
  4. Step 4: Simplify right side
    38,106.56x = 1,161,682,328.48
  5. Step 5: Solve for x
    x = 1,161,682,328.48/38,106.56
  6. Step 6: Final answer
    x = 30,485.10

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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.