Home / 30,561.96-45,828.40-11,850.72

Finding the Fourth Proportional to 30,561.96, 45,828.40 and 11,850.72

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Solution

The fourth proportional to 30,561.96, 45,828.40 and 11,850.72 is: 17,770.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,561.96 : 45,828.40 = 11,850.72 : x
  2. Step 2: Convert to fraction form
    30,561.96/45,828.40 = 11,850.72/x
  3. Step 3: Cross multiply
    30,561.96x = 45,828.40 × 11,850.72
  4. Step 4: Simplify right side
    30,561.96x = 543,099,536.45
  5. Step 5: Solve for x
    x = 543,099,536.45/30,561.96
  6. Step 6: Final answer
    x = 17,770.44

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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.