Home / 28,109.50-38,791.11-16,933.66

Finding the Fourth Proportional to 28,109.50, 38,791.11 and 16,933.66

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Solution

The fourth proportional to 28,109.50, 38,791.11 and 16,933.66 is: 23,368.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,109.50 : 38,791.11 = 16,933.66 : x
  2. Step 2: Convert to fraction form
    28,109.50/38,791.11 = 16,933.66/x
  3. Step 3: Cross multiply
    28,109.50x = 38,791.11 × 16,933.66
  4. Step 4: Simplify right side
    28,109.50x = 656,875,467.76
  5. Step 5: Solve for x
    x = 656,875,467.76/28,109.50
  6. Step 6: Final answer
    x = 23,368.45

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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.