Home / 31,223.41-43,092.24-20,477.32

Finding the Fourth Proportional to 31,223.41, 43,092.24 and 20,477.32

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Solution

The fourth proportional to 31,223.41, 43,092.24 and 20,477.32 is: 28,261.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,223.41 : 43,092.24 = 20,477.32 : x
  2. Step 2: Convert to fraction form
    31,223.41/43,092.24 = 20,477.32/x
  3. Step 3: Cross multiply
    31,223.41x = 43,092.24 × 20,477.32
  4. Step 4: Simplify right side
    31,223.41x = 882,413,588.00
  5. Step 5: Solve for x
    x = 882,413,588.00/31,223.41
  6. Step 6: Final answer
    x = 28,261.28

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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.