Home / 20,174.86-27,840.27-11,222.34

Finding the Fourth Proportional to 20,174.86, 27,840.27 and 11,222.34

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Solution

The fourth proportional to 20,174.86, 27,840.27 and 11,222.34 is: 15,486.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,174.86 : 27,840.27 = 11,222.34 : x
  2. Step 2: Convert to fraction form
    20,174.86/27,840.27 = 11,222.34/x
  3. Step 3: Cross multiply
    20,174.86x = 27,840.27 × 11,222.34
  4. Step 4: Simplify right side
    20,174.86x = 312,432,975.63
  5. Step 5: Solve for x
    x = 312,432,975.63/20,174.86
  6. Step 6: Final answer
    x = 15,486.25

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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.