Home / 19,200.35-28,813.49-6,720.47

Finding the Fourth Proportional to 19,200.35, 28,813.49 and 6,720.47

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Solution

The fourth proportional to 19,200.35, 28,813.49 and 6,720.47 is: 10,085.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,200.35 : 28,813.49 = 6,720.47 : x
  2. Step 2: Convert to fraction form
    19,200.35/28,813.49 = 6,720.47/x
  3. Step 3: Cross multiply
    19,200.35x = 28,813.49 × 6,720.47
  4. Step 4: Simplify right side
    19,200.35x = 193,640,233.57
  5. Step 5: Solve for x
    x = 193,640,233.57/19,200.35
  6. Step 6: Final answer
    x = 10,085.25

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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.