Home / 21,855.20-32,777.93-8,528.54

Finding the Fourth Proportional to 21,855.20, 32,777.93 and 8,528.54

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Solution

The fourth proportional to 21,855.20, 32,777.93 and 8,528.54 is: 12,790.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,855.20 : 32,777.93 = 8,528.54 : x
  2. Step 2: Convert to fraction form
    21,855.20/32,777.93 = 8,528.54/x
  3. Step 3: Cross multiply
    21,855.20x = 32,777.93 × 8,528.54
  4. Step 4: Simplify right side
    21,855.20x = 279,547,887.12
  5. Step 5: Solve for x
    x = 279,547,887.12/21,855.20
  6. Step 6: Final answer
    x = 12,790.91

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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.