Home / 23,899.68-32,980.88-13,289.12

Finding the Fourth Proportional to 23,899.68, 32,980.88 and 13,289.12

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Solution

The fourth proportional to 23,899.68, 32,980.88 and 13,289.12 is: 18,338.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    23,899.68 : 32,980.88 = 13,289.12 : x
  2. Step 2: Convert to fraction form
    23,899.68/32,980.88 = 13,289.12/x
  3. Step 3: Cross multiply
    23,899.68x = 32,980.88 × 13,289.12
  4. Step 4: Simplify right side
    23,899.68x = 438,286,872.03
  5. Step 5: Solve for x
    x = 438,286,872.03/23,899.68
  6. Step 6: Final answer
    x = 18,338.61

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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.