Home / 28,985.67-39,999.08-16,410.42

Finding the Fourth Proportional to 28,985.67, 39,999.08 and 16,410.42

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Solution

The fourth proportional to 28,985.67, 39,999.08 and 16,410.42 is: 22,645.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,985.67 : 39,999.08 = 16,410.42 : x
  2. Step 2: Convert to fraction form
    28,985.67/39,999.08 = 16,410.42/x
  3. Step 3: Cross multiply
    28,985.67x = 39,999.08 × 16,410.42
  4. Step 4: Simplify right side
    28,985.67x = 656,401,743.44
  5. Step 5: Solve for x
    x = 656,401,743.44/28,985.67
  6. Step 6: Final answer
    x = 22,645.73

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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.