Home / 38,418.60-57,628.80-13,487.34

Finding the Fourth Proportional to 38,418.60, 57,628.80 and 13,487.34

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Solution

The fourth proportional to 38,418.60, 57,628.80 and 13,487.34 is: 20,231.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,418.60 : 57,628.80 = 13,487.34 : x
  2. Step 2: Convert to fraction form
    38,418.60/57,628.80 = 13,487.34/x
  3. Step 3: Cross multiply
    38,418.60x = 57,628.80 × 13,487.34
  4. Step 4: Simplify right side
    38,418.60x = 777,259,219.39
  5. Step 5: Solve for x
    x = 777,259,219.39/38,418.60
  6. Step 6: Final answer
    x = 20,231.33

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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.