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Finding the Fourth Proportional to 63,600, 95,400 and 19,824

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Solution

The fourth proportional to 63,600, 95,400 and 19,824 is: 29,736

Step by Step Solution

  1. Step 1: Write the proportion equation
    63,600 : 95,400 = 19,824 : x
  2. Step 2: Convert to fraction form
    63,600/95,400 = 19,824/x
  3. Step 3: Cross multiply
    63,600x = 95,400 × 19,824
  4. Step 4: Simplify right side
    63,600x = 1,891,209,600
  5. Step 5: Solve for x
    x = 1,891,209,600/63,600
  6. Step 6: Final answer
    x = 29,736

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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.