Home / 19,220.42-28,820.66-7,370.69

Finding the Fourth Proportional to 19,220.42, 28,820.66 and 7,370.69

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Solution

The fourth proportional to 19,220.42, 28,820.66 and 7,370.69 is: 11,052.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,220.42 : 28,820.66 = 7,370.69 : x
  2. Step 2: Convert to fraction form
    19,220.42/28,820.66 = 7,370.69/x
  3. Step 3: Cross multiply
    19,220.42x = 28,820.66 × 7,370.69
  4. Step 4: Simplify right side
    19,220.42x = 212,428,185.65
  5. Step 5: Solve for x
    x = 212,428,185.65/19,220.42
  6. Step 6: Final answer
    x = 11,052.21

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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.