Home / 30,311.00-41,828.58-20,750.64

Finding the Fourth Proportional to 30,311.00, 41,828.58 and 20,750.64

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Solution

The fourth proportional to 30,311.00, 41,828.58 and 20,750.64 is: 28,635.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,311.00 : 41,828.58 = 20,750.64 : x
  2. Step 2: Convert to fraction form
    30,311.00/41,828.58 = 20,750.64/x
  3. Step 3: Cross multiply
    30,311.00x = 41,828.58 × 20,750.64
  4. Step 4: Simplify right side
    30,311.00x = 867,969,805.29
  5. Step 5: Solve for x
    x = 867,969,805.29/30,311.00
  6. Step 6: Final answer
    x = 28,635.48

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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.