Home / 29,828.88-41,120.74-19,740.42

Finding the Fourth Proportional to 29,828.88, 41,120.74 and 19,740.42

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Solution

The fourth proportional to 29,828.88, 41,120.74 and 19,740.42 is: 27,213.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,828.88 : 41,120.74 = 19,740.42 : x
  2. Step 2: Convert to fraction form
    29,828.88/41,120.74 = 19,740.42/x
  3. Step 3: Cross multiply
    29,828.88x = 41,120.74 × 19,740.42
  4. Step 4: Simplify right side
    29,828.88x = 811,740,678.31
  5. Step 5: Solve for x
    x = 811,740,678.31/29,828.88
  6. Step 6: Final answer
    x = 27,213.25

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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.