Home / 28,317.08-39,076.62-15,741.56

Finding the Fourth Proportional to 28,317.08, 39,076.62 and 15,741.56

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Solution

The fourth proportional to 28,317.08, 39,076.62 and 15,741.56 is: 21,722.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,317.08 : 39,076.62 = 15,741.56 : x
  2. Step 2: Convert to fraction form
    28,317.08/39,076.62 = 15,741.56/x
  3. Step 3: Cross multiply
    28,317.08x = 39,076.62 × 15,741.56
  4. Step 4: Simplify right side
    28,317.08x = 615,126,958.33
  5. Step 5: Solve for x
    x = 615,126,958.33/28,317.08
  6. Step 6: Final answer
    x = 21,722.82

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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.