Home / 20,328.76-28,025.18-17,525.96

Finding the Fourth Proportional to 20,328.76, 28,025.18 and 17,525.96

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Solution

The fourth proportional to 20,328.76, 28,025.18 and 17,525.96 is: 24,161.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,328.76 : 28,025.18 = 17,525.96 : x
  2. Step 2: Convert to fraction form
    20,328.76/28,025.18 = 17,525.96/x
  3. Step 3: Cross multiply
    20,328.76x = 28,025.18 × 17,525.96
  4. Step 4: Simplify right side
    20,328.76x = 491,168,183.67
  5. Step 5: Solve for x
    x = 491,168,183.67/20,328.76
  6. Step 6: Final answer
    x = 24,161.25

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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.