Home / 27,739.56-38,280.60-15,164.31

Finding the Fourth Proportional to 27,739.56, 38,280.60 and 15,164.31

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Solution

The fourth proportional to 27,739.56, 38,280.60 and 15,164.31 is: 20,926.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,739.56 : 38,280.60 = 15,164.31 : x
  2. Step 2: Convert to fraction form
    27,739.56/38,280.60 = 15,164.31/x
  3. Step 3: Cross multiply
    27,739.56x = 38,280.60 × 15,164.31
  4. Step 4: Simplify right side
    27,739.56x = 580,498,885.39
  5. Step 5: Solve for x
    x = 580,498,885.39/27,739.56
  6. Step 6: Final answer
    x = 20,926.75

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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.