Home / 27,847.57-38,431.06-15,914.75

Finding the Fourth Proportional to 27,847.57, 38,431.06 and 15,914.75

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Solution

The fourth proportional to 27,847.57, 38,431.06 and 15,914.75 is: 21,963.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,847.57 : 38,431.06 = 15,914.75 : x
  2. Step 2: Convert to fraction form
    27,847.57/38,431.06 = 15,914.75/x
  3. Step 3: Cross multiply
    27,847.57x = 38,431.06 × 15,914.75
  4. Step 4: Simplify right side
    27,847.57x = 611,620,804.45
  5. Step 5: Solve for x
    x = 611,620,804.45/27,847.57
  6. Step 6: Final answer
    x = 21,963.16

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.