Home / 19,719.84-27,206.34-12,650.16

Finding the Fourth Proportional to 19,719.84, 27,206.34 and 12,650.16

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Solution

The fourth proportional to 19,719.84, 27,206.34 and 12,650.16 is: 17,452.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,719.84 : 27,206.34 = 12,650.16 : x
  2. Step 2: Convert to fraction form
    19,719.84/27,206.34 = 12,650.16/x
  3. Step 3: Cross multiply
    19,719.84x = 27,206.34 × 12,650.16
  4. Step 4: Simplify right side
    19,719.84x = 344,164,554.01
  5. Step 5: Solve for x
    x = 344,164,554.01/19,719.84
  6. Step 6: Final answer
    x = 17,452.71

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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.