Home / 19,987.69-27,583.01-11,035.20

Finding the Fourth Proportional to 19,987.69, 27,583.01 and 11,035.20

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Solution

The fourth proportional to 19,987.69, 27,583.01 and 11,035.20 is: 15,228.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,987.69 : 27,583.01 = 11,035.20 : x
  2. Step 2: Convert to fraction form
    19,987.69/27,583.01 = 11,035.20/x
  3. Step 3: Cross multiply
    19,987.69x = 27,583.01 × 11,035.20
  4. Step 4: Simplify right side
    19,987.69x = 304,384,031.95
  5. Step 5: Solve for x
    x = 304,384,031.95/19,987.69
  6. Step 6: Final answer
    x = 15,228.57

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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.