Home / 21,462.03-32,197.07-8,640.17

Finding the Fourth Proportional to 21,462.03, 32,197.07 and 8,640.17

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Solution

The fourth proportional to 21,462.03, 32,197.07 and 8,640.17 is: 12,961.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,462.03 : 32,197.07 = 8,640.17 : x
  2. Step 2: Convert to fraction form
    21,462.03/32,197.07 = 8,640.17/x
  3. Step 3: Cross multiply
    21,462.03x = 32,197.07 × 8,640.17
  4. Step 4: Simplify right side
    21,462.03x = 278,187,954.12
  5. Step 5: Solve for x
    x = 278,187,954.12/21,462.03
  6. Step 6: Final answer
    x = 12,961.87

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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.