Home / 19,987.20-27,582.57-11,035.08

Finding the Fourth Proportional to 19,987.20, 27,582.57 and 11,035.08

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Solution

The fourth proportional to 19,987.20, 27,582.57 and 11,035.08 is: 15,228.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,987.20 : 27,582.57 = 11,035.08 : x
  2. Step 2: Convert to fraction form
    19,987.20/27,582.57 = 11,035.08/x
  3. Step 3: Cross multiply
    19,987.20x = 27,582.57 × 11,035.08
  4. Step 4: Simplify right side
    19,987.20x = 304,375,866.56
  5. Step 5: Solve for x
    x = 304,375,866.56/19,987.20
  6. Step 6: Final answer
    x = 15,228.54

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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.