Home / 40,015.55-59,975.37-18,639.45

Finding the Fourth Proportional to 40,015.55, 59,975.37 and 18,639.45

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Solution

The fourth proportional to 40,015.55, 59,975.37 and 18,639.45 is: 27,936.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,015.55 : 59,975.37 = 18,639.45 : x
  2. Step 2: Convert to fraction form
    40,015.55/59,975.37 = 18,639.45/x
  3. Step 3: Cross multiply
    40,015.55x = 59,975.37 × 18,639.45
  4. Step 4: Simplify right side
    40,015.55x = 1,117,907,910.35
  5. Step 5: Solve for x
    x = 1,117,907,910.35/40,015.55
  6. Step 6: Final answer
    x = 27,936.84

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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.