Home / 40,405.21-60,607.86-12,323.78

Finding the Fourth Proportional to 40,405.21, 60,607.86 and 12,323.78

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Solution

The fourth proportional to 40,405.21, 60,607.86 and 12,323.78 is: 18,485.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,405.21 : 60,607.86 = 12,323.78 : x
  2. Step 2: Convert to fraction form
    40,405.21/60,607.86 = 12,323.78/x
  3. Step 3: Cross multiply
    40,405.21x = 60,607.86 × 12,323.78
  4. Step 4: Simplify right side
    40,405.21x = 746,917,903.37
  5. Step 5: Solve for x
    x = 746,917,903.37/40,405.21
  6. Step 6: Final answer
    x = 18,485.68

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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.