Home / 19,081.42-28,622.40-8,681.02

Finding the Fourth Proportional to 19,081.42, 28,622.40 and 8,681.02

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Solution

The fourth proportional to 19,081.42, 28,622.40 and 8,681.02 is: 13,021.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,081.42 : 28,622.40 = 8,681.02 : x
  2. Step 2: Convert to fraction form
    19,081.42/28,622.40 = 8,681.02/x
  3. Step 3: Cross multiply
    19,081.42x = 28,622.40 × 8,681.02
  4. Step 4: Simplify right side
    19,081.42x = 248,471,626.85
  5. Step 5: Solve for x
    x = 248,471,626.85/19,081.42
  6. Step 6: Final answer
    x = 13,021.65

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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.