Home / 31,999.20-48,009.60-15,369.60

Finding the Fourth Proportional to 31,999.20, 48,009.60 and 15,369.60

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Solution

The fourth proportional to 31,999.20, 48,009.60 and 15,369.60 is: 23,059.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,999.20 : 48,009.60 = 15,369.60 : x
  2. Step 2: Convert to fraction form
    31,999.20/48,009.60 = 15,369.60/x
  3. Step 3: Cross multiply
    31,999.20x = 48,009.60 × 15,369.60
  4. Step 4: Simplify right side
    31,999.20x = 737,888,348.16
  5. Step 5: Solve for x
    x = 737,888,348.16/31,999.20
  6. Step 6: Final answer
    x = 23,059.59

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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.