Home / 20,537.03-30,814.81-11,771.95

Finding the Fourth Proportional to 20,537.03, 30,814.81 and 11,771.95

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Solution

The fourth proportional to 20,537.03, 30,814.81 and 11,771.95 is: 17,663.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,537.03 : 30,814.81 = 11,771.95 : x
  2. Step 2: Convert to fraction form
    20,537.03/30,814.81 = 11,771.95/x
  3. Step 3: Cross multiply
    20,537.03x = 30,814.81 × 11,771.95
  4. Step 4: Simplify right side
    20,537.03x = 362,750,402.58
  5. Step 5: Solve for x
    x = 362,750,402.58/20,537.03
  6. Step 6: Final answer
    x = 17,663.24

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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.