Home / 33,840.70-46,704.52-20,419.20

Finding the Fourth Proportional to 33,840.70, 46,704.52 and 20,419.20

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Solution

The fourth proportional to 33,840.70, 46,704.52 and 20,419.20 is: 28,181.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    33,840.70 : 46,704.52 = 20,419.20 : x
  2. Step 2: Convert to fraction form
    33,840.70/46,704.52 = 20,419.20/x
  3. Step 3: Cross multiply
    33,840.70x = 46,704.52 × 20,419.20
  4. Step 4: Simplify right side
    33,840.70x = 953,668,934.78
  5. Step 5: Solve for x
    x = 953,668,934.78/33,840.70
  6. Step 6: Final answer
    x = 28,181.12

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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.