Home / 20,122.03-27,777.71-12,059.52

Finding the Fourth Proportional to 20,122.03, 27,777.71 and 12,059.52

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Solution

The fourth proportional to 20,122.03, 27,777.71 and 12,059.52 is: 16,647.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,122.03 : 27,777.71 = 12,059.52 : x
  2. Step 2: Convert to fraction form
    20,122.03/27,777.71 = 12,059.52/x
  3. Step 3: Cross multiply
    20,122.03x = 27,777.71 × 12,059.52
  4. Step 4: Simplify right side
    20,122.03x = 334,985,849.30
  5. Step 5: Solve for x
    x = 334,985,849.30/20,122.03
  6. Step 6: Final answer
    x = 16,647.72

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.