Home / 20,225.06-27,911.54-11,272.63

Finding the Fourth Proportional to 20,225.06, 27,911.54 and 11,272.63

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Solution

The fourth proportional to 20,225.06, 27,911.54 and 11,272.63 is: 15,556.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,225.06 : 27,911.54 = 11,272.63 : x
  2. Step 2: Convert to fraction form
    20,225.06/27,911.54 = 11,272.63/x
  3. Step 3: Cross multiply
    20,225.06x = 27,911.54 × 11,272.63
  4. Step 4: Simplify right side
    20,225.06x = 314,636,463.15
  5. Step 5: Solve for x
    x = 314,636,463.15/20,225.06
  6. Step 6: Final answer
    x = 15,556.76

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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.