Home / 19,987.68-27,583.09-11,035.02

Finding the Fourth Proportional to 19,987.68, 27,583.09 and 11,035.02

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Solution

The fourth proportional to 19,987.68, 27,583.09 and 11,035.02 is: 15,228.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,987.68 : 27,583.09 = 11,035.02 : x
  2. Step 2: Convert to fraction form
    19,987.68/27,583.09 = 11,035.02/x
  3. Step 3: Cross multiply
    19,987.68x = 27,583.09 × 11,035.02
  4. Step 4: Simplify right side
    19,987.68x = 304,379,949.81
  5. Step 5: Solve for x
    x = 304,379,949.81/19,987.68
  6. Step 6: Final answer
    x = 15,228.38

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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.