Home / 20,768.64-31,148.30-5,974.26

Finding the Fourth Proportional to 20,768.64, 31,148.30 and 5,974.26

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Solution

The fourth proportional to 20,768.64, 31,148.30 and 5,974.26 is: 8,960.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,768.64 : 31,148.30 = 5,974.26 : x
  2. Step 2: Convert to fraction form
    20,768.64/31,148.30 = 5,974.26/x
  3. Step 3: Cross multiply
    20,768.64x = 31,148.30 × 5,974.26
  4. Step 4: Simplify right side
    20,768.64x = 186,088,042.76
  5. Step 5: Solve for x
    x = 186,088,042.76/20,768.64
  6. Step 6: Final answer
    x = 8,960.05

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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.