Home / 21,745.72-32,612.10-9,265.60

Finding the Fourth Proportional to 21,745.72, 32,612.10 and 9,265.60

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Solution

The fourth proportional to 21,745.72, 32,612.10 and 9,265.60 is: 13,895.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,745.72 : 32,612.10 = 9,265.60 : x
  2. Step 2: Convert to fraction form
    21,745.72/32,612.10 = 9,265.60/x
  3. Step 3: Cross multiply
    21,745.72x = 32,612.10 × 9,265.60
  4. Step 4: Simplify right side
    21,745.72x = 302,170,673.76
  5. Step 5: Solve for x
    x = 302,170,673.76/21,745.72
  6. Step 6: Final answer
    x = 13,895.64

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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.