Home / 20,928.92-31,374.41-7,598.79

Finding the Fourth Proportional to 20,928.92, 31,374.41 and 7,598.79

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Solution

The fourth proportional to 20,928.92, 31,374.41 and 7,598.79 is: 11,391.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,928.92 : 31,374.41 = 7,598.79 : x
  2. Step 2: Convert to fraction form
    20,928.92/31,374.41 = 7,598.79/x
  3. Step 3: Cross multiply
    20,928.92x = 31,374.41 × 7,598.79
  4. Step 4: Simplify right side
    20,928.92x = 238,407,514.97
  5. Step 5: Solve for x
    x = 238,407,514.97/20,928.92
  6. Step 6: Final answer
    x = 11,391.30

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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.