Home / 20,555.54-30,836.52-8,709.33

Finding the Fourth Proportional to 20,555.54, 30,836.52 and 8,709.33

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Solution

The fourth proportional to 20,555.54, 30,836.52 and 8,709.33 is: 13,065.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,555.54 : 30,836.52 = 8,709.33 : x
  2. Step 2: Convert to fraction form
    20,555.54/30,836.52 = 8,709.33/x
  3. Step 3: Cross multiply
    20,555.54x = 30,836.52 × 8,709.33
  4. Step 4: Simplify right side
    20,555.54x = 268,565,428.73
  5. Step 5: Solve for x
    x = 268,565,428.73/20,555.54
  6. Step 6: Final answer
    x = 13,065.36

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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.