Home / 19,184.81-28,781.33-10,868.81

Finding the Fourth Proportional to 19,184.81, 28,781.33 and 10,868.81

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Solution

The fourth proportional to 19,184.81, 28,781.33 and 10,868.81 is: 16,305.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,184.81 : 28,781.33 = 10,868.81 : x
  2. Step 2: Convert to fraction form
    19,184.81/28,781.33 = 10,868.81/x
  3. Step 3: Cross multiply
    19,184.81x = 28,781.33 × 10,868.81
  4. Step 4: Simplify right side
    19,184.81x = 312,818,609.07
  5. Step 5: Solve for x
    x = 312,818,609.07/19,184.81
  6. Step 6: Final answer
    x = 16,305.54

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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.