Home / 20,625.04-28,462.53-11,672.38

Finding the Fourth Proportional to 20,625.04, 28,462.53 and 11,672.38

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Solution

The fourth proportional to 20,625.04, 28,462.53 and 11,672.38 is: 16,107.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,625.04 : 28,462.53 = 11,672.38 : x
  2. Step 2: Convert to fraction form
    20,625.04/28,462.53 = 11,672.38/x
  3. Step 3: Cross multiply
    20,625.04x = 28,462.53 × 11,672.38
  4. Step 4: Simplify right side
    20,625.04x = 332,225,323.61
  5. Step 5: Solve for x
    x = 332,225,323.61/20,625.04
  6. Step 6: Final answer
    x = 16,107.87

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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.