Home / 31,382.64-47,093.40-28,155.60

Finding the Fourth Proportional to 31,382.64, 47,093.40 and 28,155.60

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Solution

The fourth proportional to 31,382.64, 47,093.40 and 28,155.60 is: 42,250.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,382.64 : 47,093.40 = 28,155.60 : x
  2. Step 2: Convert to fraction form
    31,382.64/47,093.40 = 28,155.60/x
  3. Step 3: Cross multiply
    31,382.64x = 47,093.40 × 28,155.60
  4. Step 4: Simplify right side
    31,382.64x = 1,325,942,933.04
  5. Step 5: Solve for x
    x = 1,325,942,933.04/31,382.64
  6. Step 6: Final answer
    x = 42,250.84

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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.