Home / 31,727.64-43,801.12-20,254.09

Finding the Fourth Proportional to 31,727.64, 43,801.12 and 20,254.09

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Solution

The fourth proportional to 31,727.64, 43,801.12 and 20,254.09 is: 27,961.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,727.64 : 43,801.12 = 20,254.09 : x
  2. Step 2: Convert to fraction form
    31,727.64/43,801.12 = 20,254.09/x
  3. Step 3: Cross multiply
    31,727.64x = 43,801.12 × 20,254.09
  4. Step 4: Simplify right side
    31,727.64x = 887,151,826.58
  5. Step 5: Solve for x
    x = 887,151,826.58/31,727.64
  6. Step 6: Final answer
    x = 27,961.48

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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.