Home / 28,327.12-39,091.62-15,752.68

Finding the Fourth Proportional to 28,327.12, 39,091.62 and 15,752.68

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Solution

The fourth proportional to 28,327.12, 39,091.62 and 15,752.68 is: 21,738.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,327.12 : 39,091.62 = 15,752.68 : x
  2. Step 2: Convert to fraction form
    28,327.12/39,091.62 = 15,752.68/x
  3. Step 3: Cross multiply
    28,327.12x = 39,091.62 × 15,752.68
  4. Step 4: Simplify right side
    28,327.12x = 615,797,780.54
  5. Step 5: Solve for x
    x = 615,797,780.54/28,327.12
  6. Step 6: Final answer
    x = 21,738.81

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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.