Home / 30,390.66-41,938.56-16,961.67

Finding the Fourth Proportional to 30,390.66, 41,938.56 and 16,961.67

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Solution

The fourth proportional to 30,390.66, 41,938.56 and 16,961.67 is: 23,406.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,390.66 : 41,938.56 = 16,961.67 : x
  2. Step 2: Convert to fraction form
    30,390.66/41,938.56 = 16,961.67/x
  3. Step 3: Cross multiply
    30,390.66x = 41,938.56 × 16,961.67
  4. Step 4: Simplify right side
    30,390.66x = 711,348,015.00
  5. Step 5: Solve for x
    x = 711,348,015.00/30,390.66
  6. Step 6: Final answer
    x = 23,406.80

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.