Home / 28,014.11-38,647.22-18,441.66

Finding the Fourth Proportional to 28,014.11, 38,647.22 and 18,441.66

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Solution

The fourth proportional to 28,014.11, 38,647.22 and 18,441.66 is: 25,441.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,014.11 : 38,647.22 = 18,441.66 : x
  2. Step 2: Convert to fraction form
    28,014.11/38,647.22 = 18,441.66/x
  3. Step 3: Cross multiply
    28,014.11x = 38,647.22 × 18,441.66
  4. Step 4: Simplify right side
    28,014.11x = 712,718,798.98
  5. Step 5: Solve for x
    x = 712,718,798.98/28,014.11
  6. Step 6: Final answer
    x = 25,441.43

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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.