Home / 20,349-28,076.76-11,845.89

Finding the Fourth Proportional to 20,349, 28,076.76 and 11,845.89

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Solution

The fourth proportional to 20,349, 28,076.76 and 11,845.89 is: 16,344.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,349 : 28,076.76 = 11,845.89 : x
  2. Step 2: Convert to fraction form
    20,349/28,076.76 = 11,845.89/x
  3. Step 3: Cross multiply
    20,349x = 28,076.76 × 11,845.89
  4. Step 4: Simplify right side
    20,349x = 332,594,210.52
  5. Step 5: Solve for x
    x = 332,594,210.52/20,349
  6. Step 6: Final answer
    x = 16,344.50

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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.