Home / 19,987.08-27,582.75-11,035.16

Finding the Fourth Proportional to 19,987.08, 27,582.75 and 11,035.16

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Solution

The fourth proportional to 19,987.08, 27,582.75 and 11,035.16 is: 15,228.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,987.08 : 27,582.75 = 11,035.16 : x
  2. Step 2: Convert to fraction form
    19,987.08/27,582.75 = 11,035.16/x
  3. Step 3: Cross multiply
    19,987.08x = 27,582.75 × 11,035.16
  4. Step 4: Simplify right side
    19,987.08x = 304,379,921.58
  5. Step 5: Solve for x
    x = 304,379,921.58/19,987.08
  6. Step 6: Final answer
    x = 15,228.83

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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.