Home / 20,141.32-27,795.08-11,188.60

Finding the Fourth Proportional to 20,141.32, 27,795.08 and 11,188.60

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Solution

The fourth proportional to 20,141.32, 27,795.08 and 11,188.60 is: 15,440.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,141.32 : 27,795.08 = 11,188.60 : x
  2. Step 2: Convert to fraction form
    20,141.32/27,795.08 = 11,188.60/x
  3. Step 3: Cross multiply
    20,141.32x = 27,795.08 × 11,188.60
  4. Step 4: Simplify right side
    20,141.32x = 310,988,032.09
  5. Step 5: Solve for x
    x = 310,988,032.09/20,141.32
  6. Step 6: Final answer
    x = 15,440.30

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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.