Home / 27,168.22-40,723.56-9,139.28

Finding the Fourth Proportional to 27,168.22, 40,723.56 and 9,139.28

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Solution

The fourth proportional to 27,168.22, 40,723.56 and 9,139.28 is: 13,699.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,168.22 : 40,723.56 = 9,139.28 : x
  2. Step 2: Convert to fraction form
    27,168.22/40,723.56 = 9,139.28/x
  3. Step 3: Cross multiply
    27,168.22x = 40,723.56 × 9,139.28
  4. Step 4: Simplify right side
    27,168.22x = 372,184,042.89
  5. Step 5: Solve for x
    x = 372,184,042.89/27,168.22
  6. Step 6: Final answer
    x = 13,699.24

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.