Home / 20,148.36-30,201.39-7,660.59

Finding the Fourth Proportional to 20,148.36, 30,201.39 and 7,660.59

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Solution

The fourth proportional to 20,148.36, 30,201.39 and 7,660.59 is: 11,482.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,148.36 : 30,201.39 = 7,660.59 : x
  2. Step 2: Convert to fraction form
    20,148.36/30,201.39 = 7,660.59/x
  3. Step 3: Cross multiply
    20,148.36x = 30,201.39 × 7,660.59
  4. Step 4: Simplify right side
    20,148.36x = 231,360,466.22
  5. Step 5: Solve for x
    x = 231,360,466.22/20,148.36
  6. Step 6: Final answer
    x = 11,482.84

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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.