Home / 19,589.40-27,041.04-12,519.72

Finding the Fourth Proportional to 19,589.40, 27,041.04 and 12,519.72

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Solution

The fourth proportional to 19,589.40, 27,041.04 and 12,519.72 is: 17,282.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,589.40 : 27,041.04 = 12,519.72 : x
  2. Step 2: Convert to fraction form
    19,589.40/27,041.04 = 12,519.72/x
  3. Step 3: Cross multiply
    19,589.40x = 27,041.04 × 12,519.72
  4. Step 4: Simplify right side
    19,589.40x = 338,546,249.31
  5. Step 5: Solve for x
    x = 338,546,249.31/19,589.40
  6. Step 6: Final answer
    x = 17,282.11

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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.