Home / 21,528.58-32,296.11-7,676.50

Finding the Fourth Proportional to 21,528.58, 32,296.11 and 7,676.50

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Solution

The fourth proportional to 21,528.58, 32,296.11 and 7,676.50 is: 11,515.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,528.58 : 32,296.11 = 7,676.50 : x
  2. Step 2: Convert to fraction form
    21,528.58/32,296.11 = 7,676.50/x
  3. Step 3: Cross multiply
    21,528.58x = 32,296.11 × 7,676.50
  4. Step 4: Simplify right side
    21,528.58x = 247,921,088.42
  5. Step 5: Solve for x
    x = 247,921,088.42/21,528.58
  6. Step 6: Final answer
    x = 11,515.91

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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.