Home / 20,848.63-28,771.13-11,288.52

Finding the Fourth Proportional to 20,848.63, 28,771.13 and 11,288.52

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Solution

The fourth proportional to 20,848.63, 28,771.13 and 11,288.52 is: 15,578.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,848.63 : 28,771.13 = 11,288.52 : x
  2. Step 2: Convert to fraction form
    20,848.63/28,771.13 = 11,288.52/x
  3. Step 3: Cross multiply
    20,848.63x = 28,771.13 × 11,288.52
  4. Step 4: Simplify right side
    20,848.63x = 324,783,476.43
  5. Step 5: Solve for x
    x = 324,783,476.43/20,848.63
  6. Step 6: Final answer
    x = 15,578.17

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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.