Home / 21,325.28-31,992.84-6,536.36

Finding the Fourth Proportional to 21,325.28, 31,992.84 and 6,536.36

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Solution

The fourth proportional to 21,325.28, 31,992.84 and 6,536.36 is: 9,806.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,325.28 : 31,992.84 = 6,536.36 : x
  2. Step 2: Convert to fraction form
    21,325.28/31,992.84 = 6,536.36/x
  3. Step 3: Cross multiply
    21,325.28x = 31,992.84 × 6,536.36
  4. Step 4: Simplify right side
    21,325.28x = 209,116,719.66
  5. Step 5: Solve for x
    x = 209,116,719.66/21,325.28
  6. Step 6: Final answer
    x = 9,806.05

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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.