Home / 18,867.21-28,305.93-16,801.56

Finding the Fourth Proportional to 18,867.21, 28,305.93 and 16,801.56

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Solution

The fourth proportional to 18,867.21, 28,305.93 and 16,801.56 is: 25,206.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,867.21 : 28,305.93 = 16,801.56 : x
  2. Step 2: Convert to fraction form
    18,867.21/28,305.93 = 16,801.56/x
  3. Step 3: Cross multiply
    18,867.21x = 28,305.93 × 16,801.56
  4. Step 4: Simplify right side
    18,867.21x = 475,583,781.25
  5. Step 5: Solve for x
    x = 475,583,781.25/18,867.21
  6. Step 6: Final answer
    x = 25,206.89

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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.