Home / 13,550.32-20,320.26-5,433.45

Finding the Fourth Proportional to 13,550.32, 20,320.26 and 5,433.45

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Solution

The fourth proportional to 13,550.32, 20,320.26 and 5,433.45 is: 8,148.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,550.32 : 20,320.26 = 5,433.45 : x
  2. Step 2: Convert to fraction form
    13,550.32/20,320.26 = 5,433.45/x
  3. Step 3: Cross multiply
    13,550.32x = 20,320.26 × 5,433.45
  4. Step 4: Simplify right side
    13,550.32x = 110,409,116.70
  5. Step 5: Solve for x
    x = 110,409,116.70/13,550.32
  6. Step 6: Final answer
    x = 8,148.08

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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.