Home / 23,728.20-32,745.12-13,118.28

Finding the Fourth Proportional to 23,728.20, 32,745.12 and 13,118.28

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Solution

The fourth proportional to 23,728.20, 32,745.12 and 13,118.28 is: 18,103.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    23,728.20 : 32,745.12 = 13,118.28 : x
  2. Step 2: Convert to fraction form
    23,728.20/32,745.12 = 13,118.28/x
  3. Step 3: Cross multiply
    23,728.20x = 32,745.12 × 13,118.28
  4. Step 4: Simplify right side
    23,728.20x = 429,559,652.79
  5. Step 5: Solve for x
    x = 429,559,652.79/23,728.20
  6. Step 6: Final answer
    x = 18,103.34

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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.