Home / 20,148.03-27,802.98-11,195.91

Finding the Fourth Proportional to 20,148.03, 27,802.98 and 11,195.91

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Solution

The fourth proportional to 20,148.03, 27,802.98 and 11,195.91 is: 15,449.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,148.03 : 27,802.98 = 11,195.91 : x
  2. Step 2: Convert to fraction form
    20,148.03/27,802.98 = 11,195.91/x
  3. Step 3: Cross multiply
    20,148.03x = 27,802.98 × 11,195.91
  4. Step 4: Simplify right side
    20,148.03x = 311,279,661.81
  5. Step 5: Solve for x
    x = 311,279,661.81/20,148.03
  6. Step 6: Final answer
    x = 15,449.63

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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.