Home / 28,431.36-42,647.04-27,653.76

Finding the Fourth Proportional to 28,431.36, 42,647.04 and 27,653.76

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Solution

The fourth proportional to 28,431.36, 42,647.04 and 27,653.76 is: 41,480.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,431.36 : 42,647.04 = 27,653.76 : x
  2. Step 2: Convert to fraction form
    28,431.36/42,647.04 = 27,653.76/x
  3. Step 3: Cross multiply
    28,431.36x = 42,647.04 × 27,653.76
  4. Step 4: Simplify right side
    28,431.36x = 1,179,351,008.87
  5. Step 5: Solve for x
    x = 1,179,351,008.87/28,431.36
  6. Step 6: Final answer
    x = 41,480.64

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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.