Home / 20,616.94-28,470.36-19,512.10

Finding the Fourth Proportional to 20,616.94, 28,470.36 and 19,512.10

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Solution

The fourth proportional to 20,616.94, 28,470.36 and 19,512.10 is: 26,944.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,616.94 : 28,470.36 = 19,512.10 : x
  2. Step 2: Convert to fraction form
    20,616.94/28,470.36 = 19,512.10/x
  3. Step 3: Cross multiply
    20,616.94x = 28,470.36 × 19,512.10
  4. Step 4: Simplify right side
    20,616.94x = 555,516,511.36
  5. Step 5: Solve for x
    x = 555,516,511.36/20,616.94
  6. Step 6: Final answer
    x = 26,944.66

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.