Home / 13,350.44-20,025.44-3,990.48

Finding the Fourth Proportional to 13,350.44, 20,025.44 and 3,990.48

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Solution

The fourth proportional to 13,350.44, 20,025.44 and 3,990.48 is: 5,985.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,350.44 : 20,025.44 = 3,990.48 : x
  2. Step 2: Convert to fraction form
    13,350.44/20,025.44 = 3,990.48/x
  3. Step 3: Cross multiply
    13,350.44x = 20,025.44 × 3,990.48
  4. Step 4: Simplify right side
    13,350.44x = 79,911,117.81
  5. Step 5: Solve for x
    x = 79,911,117.81/13,350.44
  6. Step 6: Final answer
    x = 5,985.65

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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.