Home / 20,168.54-27,832.47-11,215.52

Finding the Fourth Proportional to 20,168.54, 27,832.47 and 11,215.52

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Solution

The fourth proportional to 20,168.54, 27,832.47 and 11,215.52 is: 15,477.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,168.54 : 27,832.47 = 11,215.52 : x
  2. Step 2: Convert to fraction form
    20,168.54/27,832.47 = 11,215.52/x
  3. Step 3: Cross multiply
    20,168.54x = 27,832.47 × 11,215.52
  4. Step 4: Simplify right side
    20,168.54x = 312,155,623.93
  5. Step 5: Solve for x
    x = 312,155,623.93/20,168.54
  6. Step 6: Final answer
    x = 15,477.35

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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.