Home / 19,589.40-27,022.59-12,406.14

Finding the Fourth Proportional to 19,589.40, 27,022.59 and 12,406.14

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Solution

The fourth proportional to 19,589.40, 27,022.59 and 12,406.14 is: 17,113.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,589.40 : 27,022.59 = 12,406.14 : x
  2. Step 2: Convert to fraction form
    19,589.40/27,022.59 = 12,406.14/x
  3. Step 3: Cross multiply
    19,589.40x = 27,022.59 × 12,406.14
  4. Step 4: Simplify right side
    19,589.40x = 335,246,034.70
  5. Step 5: Solve for x
    x = 335,246,034.70/19,589.40
  6. Step 6: Final answer
    x = 17,113.64

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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.