Home / 20,212.77-27,894.47-11,260.27

Finding the Fourth Proportional to 20,212.77, 27,894.47 and 11,260.27

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Solution

The fourth proportional to 20,212.77, 27,894.47 and 11,260.27 is: 15,539.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,212.77 : 27,894.47 = 11,260.27 : x
  2. Step 2: Convert to fraction form
    20,212.77/27,894.47 = 11,260.27/x
  3. Step 3: Cross multiply
    20,212.77x = 27,894.47 × 11,260.27
  4. Step 4: Simplify right side
    20,212.77x = 314,099,117.04
  5. Step 5: Solve for x
    x = 314,099,117.04/20,212.77
  6. Step 6: Final answer
    x = 15,539.64

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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.