Home / 20,212.77-30,323.36-8,526.09

Finding the Fourth Proportional to 20,212.77, 30,323.36 and 8,526.09

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Solution

The fourth proportional to 20,212.77, 30,323.36 and 8,526.09 is: 12,790.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,212.77 : 30,323.36 = 8,526.09 : x
  2. Step 2: Convert to fraction form
    20,212.77/30,323.36 = 8,526.09/x
  3. Step 3: Cross multiply
    20,212.77x = 30,323.36 × 8,526.09
  4. Step 4: Simplify right side
    20,212.77x = 258,539,653.83
  5. Step 5: Solve for x
    x = 258,539,653.83/20,212.77
  6. Step 6: Final answer
    x = 12,790.91

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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.