Home / 20,154.84-27,786.96-16,556.28

Finding the Fourth Proportional to 20,154.84, 27,786.96 and 16,556.28

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Solution

The fourth proportional to 20,154.84, 27,786.96 and 16,556.28 is: 22,825.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,154.84 : 27,786.96 = 16,556.28 : x
  2. Step 2: Convert to fraction form
    20,154.84/27,786.96 = 16,556.28/x
  3. Step 3: Cross multiply
    20,154.84x = 27,786.96 × 16,556.28
  4. Step 4: Simplify right side
    20,154.84x = 460,048,690.11
  5. Step 5: Solve for x
    x = 460,048,690.11/20,154.84
  6. Step 6: Final answer
    x = 22,825.72

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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.