Home / 21,297.44-31,956.08-8,145.48

Finding the Fourth Proportional to 21,297.44, 31,956.08 and 8,145.48

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Solution

The fourth proportional to 21,297.44, 31,956.08 and 8,145.48 is: 12,222.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,297.44 : 31,956.08 = 8,145.48 : x
  2. Step 2: Convert to fraction form
    21,297.44/31,956.08 = 8,145.48/x
  3. Step 3: Cross multiply
    21,297.44x = 31,956.08 × 8,145.48
  4. Step 4: Simplify right side
    21,297.44x = 260,297,610.52
  5. Step 5: Solve for x
    x = 260,297,610.52/21,297.44
  6. Step 6: Final answer
    x = 12,222.01

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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.