Home / 19,987.88-27,582.55-11,035.19

Finding the Fourth Proportional to 19,987.88, 27,582.55 and 11,035.19

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Solution

The fourth proportional to 19,987.88, 27,582.55 and 11,035.19 is: 15,228.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,987.88 : 27,582.55 = 11,035.19 : x
  2. Step 2: Convert to fraction form
    19,987.88/27,582.55 = 11,035.19/x
  3. Step 3: Cross multiply
    19,987.88x = 27,582.55 × 11,035.19
  4. Step 4: Simplify right side
    19,987.88x = 304,378,679.93
  5. Step 5: Solve for x
    x = 304,378,679.93/19,987.88
  6. Step 6: Final answer
    x = 15,228.16

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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.