Home / 13,589.58-20,382.21-4,355.58

Finding the Fourth Proportional to 13,589.58, 20,382.21 and 4,355.58

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Solution

The fourth proportional to 13,589.58, 20,382.21 and 4,355.58 is: 6,532.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,589.58 : 20,382.21 = 4,355.58 : x
  2. Step 2: Convert to fraction form
    13,589.58/20,382.21 = 4,355.58/x
  3. Step 3: Cross multiply
    13,589.58x = 20,382.21 × 4,355.58
  4. Step 4: Simplify right side
    13,589.58x = 88,776,346.23
  5. Step 5: Solve for x
    x = 88,776,346.23/13,589.58
  6. Step 6: Final answer
    x = 6,532.68

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.