Home / 19,210.97-28,816.45-5,171.03

Finding the Fourth Proportional to 19,210.97, 28,816.45 and 5,171.03

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Solution

The fourth proportional to 19,210.97, 28,816.45 and 5,171.03 is: 7,756.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,210.97 : 28,816.45 = 5,171.03 : x
  2. Step 2: Convert to fraction form
    19,210.97/28,816.45 = 5,171.03/x
  3. Step 3: Cross multiply
    19,210.97x = 28,816.45 × 5,171.03
  4. Step 4: Simplify right side
    19,210.97x = 149,010,583.36
  5. Step 5: Solve for x
    x = 149,010,583.36/19,210.97
  6. Step 6: Final answer
    x = 7,756.54

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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.