Home / 27,139.36-40,704.16-9,609.28

Finding the Fourth Proportional to 27,139.36, 40,704.16 and 9,609.28

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Solution

The fourth proportional to 27,139.36, 40,704.16 and 9,609.28 is: 14,412.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,139.36 : 40,704.16 = 9,609.28 : x
  2. Step 2: Convert to fraction form
    27,139.36/40,704.16 = 9,609.28/x
  3. Step 3: Cross multiply
    27,139.36x = 40,704.16 × 9,609.28
  4. Step 4: Simplify right side
    27,139.36x = 391,137,670.60
  5. Step 5: Solve for x
    x = 391,137,670.60/27,139.36
  6. Step 6: Final answer
    x = 14,412.19

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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.