Home / 36,378.30-54,470.25-20,774.46

Finding the Fourth Proportional to 36,378.30, 54,470.25 and 20,774.46

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Solution

The fourth proportional to 36,378.30, 54,470.25 and 20,774.46 is: 31,106.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,378.30 : 54,470.25 = 20,774.46 : x
  2. Step 2: Convert to fraction form
    36,378.30/54,470.25 = 20,774.46/x
  3. Step 3: Cross multiply
    36,378.30x = 54,470.25 × 20,774.46
  4. Step 4: Simplify right side
    36,378.30x = 1,131,590,029.82
  5. Step 5: Solve for x
    x = 1,131,590,029.82/36,378.30
  6. Step 6: Final answer
    x = 31,106.18

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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.