Home / 27,139.51-40,735.50-13,109.37

Finding the Fourth Proportional to 27,139.51, 40,735.50 and 13,109.37

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Solution

The fourth proportional to 27,139.51, 40,735.50 and 13,109.37 is: 19,676.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,139.51 : 40,735.50 = 13,109.37 : x
  2. Step 2: Convert to fraction form
    27,139.51/40,735.50 = 13,109.37/x
  3. Step 3: Cross multiply
    27,139.51x = 40,735.50 × 13,109.37
  4. Step 4: Simplify right side
    27,139.51x = 534,016,741.64
  5. Step 5: Solve for x
    x = 534,016,741.64/27,139.51
  6. Step 6: Final answer
    x = 19,676.73

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1.5x scale

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.