Home / 23,385.12-32,271.36-13,315.44

Finding the Fourth Proportional to 23,385.12, 32,271.36 and 13,315.44

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Solution

The fourth proportional to 23,385.12, 32,271.36 and 13,315.44 is: 18,375.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    23,385.12 : 32,271.36 = 13,315.44 : x
  2. Step 2: Convert to fraction form
    23,385.12/32,271.36 = 13,315.44/x
  3. Step 3: Cross multiply
    23,385.12x = 32,271.36 × 13,315.44
  4. Step 4: Simplify right side
    23,385.12x = 429,707,357.80
  5. Step 5: Solve for x
    x = 429,707,357.80/23,385.12
  6. Step 6: Final answer
    x = 18,375.25

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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.