Home / 20,836.96-31,221.36-20,059.36

Finding the Fourth Proportional to 20,836.96, 31,221.36 and 20,059.36

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Solution

The fourth proportional to 20,836.96, 31,221.36 and 20,059.36 is: 30,056.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,836.96 : 31,221.36 = 20,059.36 : x
  2. Step 2: Convert to fraction form
    20,836.96/31,221.36 = 20,059.36/x
  3. Step 3: Cross multiply
    20,836.96x = 31,221.36 × 20,059.36
  4. Step 4: Simplify right side
    20,836.96x = 626,280,499.93
  5. Step 5: Solve for x
    x = 626,280,499.93/20,836.96
  6. Step 6: Final answer
    x = 30,056.23

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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.