Home / 38,512.75-53,147.60-20,848.75

Finding the Fourth Proportional to 38,512.75, 53,147.60 and 20,848.75

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Solution

The fourth proportional to 38,512.75, 53,147.60 and 20,848.75 is: 28,771.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,512.75 : 53,147.60 = 20,848.75 : x
  2. Step 2: Convert to fraction form
    38,512.75/53,147.60 = 20,848.75/x
  3. Step 3: Cross multiply
    38,512.75x = 53,147.60 × 20,848.75
  4. Step 4: Simplify right side
    38,512.75x = 1,108,061,025.50
  5. Step 5: Solve for x
    x = 1,108,061,025.50/38,512.75
  6. Step 6: Final answer
    x = 28,771.28

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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.