Home / 30,318.35-41,839.60-16,889.56

Finding the Fourth Proportional to 30,318.35, 41,839.60 and 16,889.56

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Solution

The fourth proportional to 30,318.35, 41,839.60 and 16,889.56 is: 23,307.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,318.35 : 41,839.60 = 16,889.56 : x
  2. Step 2: Convert to fraction form
    30,318.35/41,839.60 = 16,889.56/x
  3. Step 3: Cross multiply
    30,318.35x = 41,839.60 × 16,889.56
  4. Step 4: Simplify right side
    30,318.35x = 706,652,140.93
  5. Step 5: Solve for x
    x = 706,652,140.93/30,318.35
  6. Step 6: Final answer
    x = 23,307.74

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1.5x scale

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.