Home / 19,016.69-28,516.37-10,129.76

Finding the Fourth Proportional to 19,016.69, 28,516.37 and 10,129.76

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Solution

The fourth proportional to 19,016.69, 28,516.37 and 10,129.76 is: 15,190.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,016.69 : 28,516.37 = 10,129.76 : x
  2. Step 2: Convert to fraction form
    19,016.69/28,516.37 = 10,129.76/x
  3. Step 3: Cross multiply
    19,016.69x = 28,516.37 × 10,129.76
  4. Step 4: Simplify right side
    19,016.69x = 288,863,984.17
  5. Step 5: Solve for x
    x = 288,863,984.17/19,016.69
  6. Step 6: Final answer
    x = 15,190.03

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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.