Home / 19,678.53-29,503.22-11,885.52

Finding the Fourth Proportional to 19,678.53, 29,503.22 and 11,885.52

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Solution

The fourth proportional to 19,678.53, 29,503.22 and 11,885.52 is: 17,819.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,678.53 : 29,503.22 = 11,885.52 : x
  2. Step 2: Convert to fraction form
    19,678.53/29,503.22 = 11,885.52/x
  3. Step 3: Cross multiply
    19,678.53x = 29,503.22 × 11,885.52
  4. Step 4: Simplify right side
    19,678.53x = 350,661,051.95
  5. Step 5: Solve for x
    x = 350,661,051.95/19,678.53
  6. Step 6: Final answer
    x = 17,819.47

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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.