Home / 21,819.77-32,732.67-7,775.64

Finding the Fourth Proportional to 21,819.77, 32,732.67 and 7,775.64

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Solution

The fourth proportional to 21,819.77, 32,732.67 and 7,775.64 is: 11,664.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,819.77 : 32,732.67 = 7,775.64 : x
  2. Step 2: Convert to fraction form
    21,819.77/32,732.67 = 7,775.64/x
  3. Step 3: Cross multiply
    21,819.77x = 32,732.67 × 7,775.64
  4. Step 4: Simplify right side
    21,819.77x = 254,517,458.16
  5. Step 5: Solve for x
    x = 254,517,458.16/21,819.77
  6. Step 6: Final answer
    x = 11,664.54

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1.5x scale

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.