Home / 23,779.58-32,815.80-13,169.20

Finding the Fourth Proportional to 23,779.58, 32,815.80 and 13,169.20

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Solution

The fourth proportional to 23,779.58, 32,815.80 and 13,169.20 is: 18,173.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    23,779.58 : 32,815.80 = 13,169.20 : x
  2. Step 2: Convert to fraction form
    23,779.58/32,815.80 = 13,169.20/x
  3. Step 3: Cross multiply
    23,779.58x = 32,815.80 × 13,169.20
  4. Step 4: Simplify right side
    23,779.58x = 432,157,812.85
  5. Step 5: Solve for x
    x = 432,157,812.85/23,779.58
  6. Step 6: Final answer
    x = 18,173.49

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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.