Home / 21,530.52-32,296.59-7,679.52

Finding the Fourth Proportional to 21,530.52, 32,296.59 and 7,679.52

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Solution

The fourth proportional to 21,530.52, 32,296.59 and 7,679.52 is: 11,519.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,530.52 : 32,296.59 = 7,679.52 : x
  2. Step 2: Convert to fraction form
    21,530.52/32,296.59 = 7,679.52/x
  3. Step 3: Cross multiply
    21,530.52x = 32,296.59 × 7,679.52
  4. Step 4: Simplify right side
    21,530.52x = 248,022,308.84
  5. Step 5: Solve for x
    x = 248,022,308.84/21,530.52
  6. Step 6: Final answer
    x = 11,519.57

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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.