Home / 18,485.12-27,701.48-14,305.68

Finding the Fourth Proportional to 18,485.12, 27,701.48 and 14,305.68

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Solution

The fourth proportional to 18,485.12, 27,701.48 and 14,305.68 is: 21,438.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,485.12 : 27,701.48 = 14,305.68 : x
  2. Step 2: Convert to fraction form
    18,485.12/27,701.48 = 14,305.68/x
  3. Step 3: Cross multiply
    18,485.12x = 27,701.48 × 14,305.68
  4. Step 4: Simplify right side
    18,485.12x = 396,288,508.41
  5. Step 5: Solve for x
    x = 396,288,508.41/18,485.12
  6. Step 6: Final answer
    x = 21,438.24

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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.