Home / 20,166.81-30,240.96-11,850.74

Finding the Fourth Proportional to 20,166.81, 30,240.96 and 11,850.74

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Solution

The fourth proportional to 20,166.81, 30,240.96 and 11,850.74 is: 17,770.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,166.81 : 30,240.96 = 11,850.74 : x
  2. Step 2: Convert to fraction form
    20,166.81/30,240.96 = 11,850.74/x
  3. Step 3: Cross multiply
    20,166.81x = 30,240.96 × 11,850.74
  4. Step 4: Simplify right side
    20,166.81x = 358,377,603.11
  5. Step 5: Solve for x
    x = 358,377,603.11/20,166.81
  6. Step 6: Final answer
    x = 17,770.66

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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.