Home / 21,968.72-32,958.70-6,386.34

Finding the Fourth Proportional to 21,968.72, 32,958.70 and 6,386.34

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Solution

The fourth proportional to 21,968.72, 32,958.70 and 6,386.34 is: 9,581.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,968.72 : 32,958.70 = 6,386.34 : x
  2. Step 2: Convert to fraction form
    21,968.72/32,958.70 = 6,386.34/x
  3. Step 3: Cross multiply
    21,968.72x = 32,958.70 × 6,386.34
  4. Step 4: Simplify right side
    21,968.72x = 210,485,571.79
  5. Step 5: Solve for x
    x = 210,485,571.79/21,968.72
  6. Step 6: Final answer
    x = 9,581.15

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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.