Home / 19,231.04-28,842.36-7,380.80

Finding the Fourth Proportional to 19,231.04, 28,842.36 and 7,380.80

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Solution

The fourth proportional to 19,231.04, 28,842.36 and 7,380.80 is: 11,069.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,231.04 : 28,842.36 = 7,380.80 : x
  2. Step 2: Convert to fraction form
    19,231.04/28,842.36 = 7,380.80/x
  3. Step 3: Cross multiply
    19,231.04x = 28,842.36 × 7,380.80
  4. Step 4: Simplify right side
    19,231.04x = 212,879,690.69
  5. Step 5: Solve for x
    x = 212,879,690.69/19,231.04
  6. Step 6: Final answer
    x = 11,069.59

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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.