Home / 19,329.27-28,993.64-5,478.27

Finding the Fourth Proportional to 19,329.27, 28,993.64 and 5,478.27

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Solution

The fourth proportional to 19,329.27, 28,993.64 and 5,478.27 is: 8,217.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,329.27 : 28,993.64 = 5,478.27 : x
  2. Step 2: Convert to fraction form
    19,329.27/28,993.64 = 5,478.27/x
  3. Step 3: Cross multiply
    19,329.27x = 28,993.64 × 5,478.27
  4. Step 4: Simplify right side
    19,329.27x = 158,834,960.81
  5. Step 5: Solve for x
    x = 158,834,960.81/19,329.27
  6. Step 6: Final answer
    x = 8,217.33

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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.