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Finding the Fourth Proportional to 35,636.99, 49,179.05 and 19,721.44

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Solution

The fourth proportional to 35,636.99, 49,179.05 and 19,721.44 is: 27,215.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,636.99 : 49,179.05 = 19,721.44 : x
  2. Step 2: Convert to fraction form
    35,636.99/49,179.05 = 19,721.44/x
  3. Step 3: Cross multiply
    35,636.99x = 49,179.05 × 19,721.44
  4. Step 4: Simplify right side
    35,636.99x = 969,881,886.79
  5. Step 5: Solve for x
    x = 969,881,886.79/35,636.99
  6. Step 6: Final answer
    x = 27,215.59

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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.