Home / 21,963.70-32,869-17,968.78

Finding the Fourth Proportional to 21,963.70, 32,869 and 17,968.78

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Solution

The fourth proportional to 21,963.70, 32,869 and 17,968.78 is: 26,890.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,963.70 : 32,869 = 17,968.78 : x
  2. Step 2: Convert to fraction form
    21,963.70/32,869 = 17,968.78/x
  3. Step 3: Cross multiply
    21,963.70x = 32,869 × 17,968.78
  4. Step 4: Simplify right side
    21,963.70x = 590,615,829.82
  5. Step 5: Solve for x
    x = 590,615,829.82/21,963.70
  6. Step 6: Final answer
    x = 26,890.54

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1.5x scale

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.