Home / 28,845.18-39,783.96-18,230.94

Finding the Fourth Proportional to 28,845.18, 39,783.96 and 18,230.94

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Solution

The fourth proportional to 28,845.18, 39,783.96 and 18,230.94 is: 25,144.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,845.18 : 39,783.96 = 18,230.94 : x
  2. Step 2: Convert to fraction form
    28,845.18/39,783.96 = 18,230.94/x
  3. Step 3: Cross multiply
    28,845.18x = 39,783.96 × 18,230.94
  4. Step 4: Simplify right side
    28,845.18x = 725,298,987.72
  5. Step 5: Solve for x
    x = 725,298,987.72/28,845.18
  6. Step 6: Final answer
    x = 25,144.55

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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.