Home / 20,071.74-27,698.61-11,119.23

Finding the Fourth Proportional to 20,071.74, 27,698.61 and 11,119.23

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Solution

The fourth proportional to 20,071.74, 27,698.61 and 11,119.23 is: 15,344.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,071.74 : 27,698.61 = 11,119.23 : x
  2. Step 2: Convert to fraction form
    20,071.74/27,698.61 = 11,119.23/x
  3. Step 3: Cross multiply
    20,071.74x = 27,698.61 × 11,119.23
  4. Step 4: Simplify right side
    20,071.74x = 307,987,215.27
  5. Step 5: Solve for x
    x = 307,987,215.27/20,071.74
  6. Step 6: Final answer
    x = 15,344.32

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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.