Home / 31,904.75-47,857.53-11,128.25

Finding the Fourth Proportional to 31,904.75, 47,857.53 and 11,128.25

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Solution

The fourth proportional to 31,904.75, 47,857.53 and 11,128.25 is: 16,692.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,904.75 : 47,857.53 = 11,128.25 : x
  2. Step 2: Convert to fraction form
    31,904.75/47,857.53 = 11,128.25/x
  3. Step 3: Cross multiply
    31,904.75x = 47,857.53 × 11,128.25
  4. Step 4: Simplify right side
    31,904.75x = 532,570,558.22
  5. Step 5: Solve for x
    x = 532,570,558.22/31,904.75
  6. Step 6: Final answer
    x = 16,692.52

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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.