Home / 20,836.74-31,258.36-6,982.50

Finding the Fourth Proportional to 20,836.74, 31,258.36 and 6,982.50

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Solution

The fourth proportional to 20,836.74, 31,258.36 and 6,982.50 is: 10,474.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,836.74 : 31,258.36 = 6,982.50 : x
  2. Step 2: Convert to fraction form
    20,836.74/31,258.36 = 6,982.50/x
  3. Step 3: Cross multiply
    20,836.74x = 31,258.36 × 6,982.50
  4. Step 4: Simplify right side
    20,836.74x = 218,261,498.70
  5. Step 5: Solve for x
    x = 218,261,498.70/20,836.74
  6. Step 6: Final answer
    x = 10,474.84

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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.