Home / 19,019.82-28,529.70-7,324.84

Finding the Fourth Proportional to 19,019.82, 28,529.70 and 7,324.84

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Solution

The fourth proportional to 19,019.82, 28,529.70 and 7,324.84 is: 10,987.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,019.82 : 28,529.70 = 7,324.84 : x
  2. Step 2: Convert to fraction form
    19,019.82/28,529.70 = 7,324.84/x
  3. Step 3: Cross multiply
    19,019.82x = 28,529.70 × 7,324.84
  4. Step 4: Simplify right side
    19,019.82x = 208,975,487.75
  5. Step 5: Solve for x
    x = 208,975,487.75/19,019.82
  6. Step 6: Final answer
    x = 10,987.25

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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.