Home / 30,205.72-45,308.61-11,481.36

Finding the Fourth Proportional to 30,205.72, 45,308.61 and 11,481.36

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Solution

The fourth proportional to 30,205.72, 45,308.61 and 11,481.36 is: 17,222.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,205.72 : 45,308.61 = 11,481.36 : x
  2. Step 2: Convert to fraction form
    30,205.72/45,308.61 = 11,481.36/x
  3. Step 3: Cross multiply
    30,205.72x = 45,308.61 × 11,481.36
  4. Step 4: Simplify right side
    30,205.72x = 520,204,462.51
  5. Step 5: Solve for x
    x = 520,204,462.51/30,205.72
  6. Step 6: Final answer
    x = 17,222.05

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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.