Home / 23,062.88-31,827.36-12,991.64

Finding the Fourth Proportional to 23,062.88, 31,827.36 and 12,991.64

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Solution

The fourth proportional to 23,062.88, 31,827.36 and 12,991.64 is: 17,928.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    23,062.88 : 31,827.36 = 12,991.64 : x
  2. Step 2: Convert to fraction form
    23,062.88/31,827.36 = 12,991.64/x
  3. Step 3: Cross multiply
    23,062.88x = 31,827.36 × 12,991.64
  4. Step 4: Simplify right side
    23,062.88x = 413,489,603.27
  5. Step 5: Solve for x
    x = 413,489,603.27/23,062.88
  6. Step 6: Final answer
    x = 17,928.79

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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.