Home / 21,707.88-32,564.20-6,911.60

Finding the Fourth Proportional to 21,707.88, 32,564.20 and 6,911.60

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Solution

The fourth proportional to 21,707.88, 32,564.20 and 6,911.60 is: 10,368.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,707.88 : 32,564.20 = 6,911.60 : x
  2. Step 2: Convert to fraction form
    21,707.88/32,564.20 = 6,911.60/x
  3. Step 3: Cross multiply
    21,707.88x = 32,564.20 × 6,911.60
  4. Step 4: Simplify right side
    21,707.88x = 225,070,724.72
  5. Step 5: Solve for x
    x = 225,070,724.72/21,707.88
  6. Step 6: Final answer
    x = 10,368.16

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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.