Home / 20,514.54-30,718.41-19,267.79

Finding the Fourth Proportional to 20,514.54, 30,718.41 and 19,267.79

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Solution

The fourth proportional to 20,514.54, 30,718.41 and 19,267.79 is: 28,851.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,514.54 : 30,718.41 = 19,267.79 : x
  2. Step 2: Convert to fraction form
    20,514.54/30,718.41 = 19,267.79/x
  3. Step 3: Cross multiply
    20,514.54x = 30,718.41 × 19,267.79
  4. Step 4: Simplify right side
    20,514.54x = 591,875,647.17
  5. Step 5: Solve for x
    x = 591,875,647.17/20,514.54
  6. Step 6: Final answer
    x = 28,851.51

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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.