Home / 22,777.06-31,429.20-12,704.32

Finding the Fourth Proportional to 22,777.06, 31,429.20 and 12,704.32

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Solution

The fourth proportional to 22,777.06, 31,429.20 and 12,704.32 is: 17,530.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,777.06 : 31,429.20 = 12,704.32 : x
  2. Step 2: Convert to fraction form
    22,777.06/31,429.20 = 12,704.32/x
  3. Step 3: Cross multiply
    22,777.06x = 31,429.20 × 12,704.32
  4. Step 4: Simplify right side
    22,777.06x = 399,286,614.14
  5. Step 5: Solve for x
    x = 399,286,614.14/22,777.06
  6. Step 6: Final answer
    x = 17,530.21

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.