Home / 29,809.12-41,085.84-20,361.28

Finding the Fourth Proportional to 29,809.12, 41,085.84 and 20,361.28

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Solution

The fourth proportional to 29,809.12, 41,085.84 and 20,361.28 is: 28,063.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,809.12 : 41,085.84 = 20,361.28 : x
  2. Step 2: Convert to fraction form
    29,809.12/41,085.84 = 20,361.28/x
  3. Step 3: Cross multiply
    29,809.12x = 41,085.84 × 20,361.28
  4. Step 4: Simplify right side
    29,809.12x = 836,560,292.28
  5. Step 5: Solve for x
    x = 836,560,292.28/29,809.12
  6. Step 6: Final answer
    x = 28,063.90

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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.