Home / 19,388.07-29,076.80-5,344.79

Finding the Fourth Proportional to 19,388.07, 29,076.80 and 5,344.79

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Solution

The fourth proportional to 19,388.07, 29,076.80 and 5,344.79 is: 8,015.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,388.07 : 29,076.80 = 5,344.79 : x
  2. Step 2: Convert to fraction form
    19,388.07/29,076.80 = 5,344.79/x
  3. Step 3: Cross multiply
    19,388.07x = 29,076.80 × 5,344.79
  4. Step 4: Simplify right side
    19,388.07x = 155,409,217.76
  5. Step 5: Solve for x
    x = 155,409,217.76/19,388.07
  6. Step 6: Final answer
    x = 8,015.71

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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.