Home / 21,282.24-29,360.78-12,202.54

Finding the Fourth Proportional to 21,282.24, 29,360.78 and 12,202.54

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Solution

The fourth proportional to 21,282.24, 29,360.78 and 12,202.54 is: 16,834.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,282.24 : 29,360.78 = 12,202.54 : x
  2. Step 2: Convert to fraction form
    21,282.24/29,360.78 = 12,202.54/x
  3. Step 3: Cross multiply
    21,282.24x = 29,360.78 × 12,202.54
  4. Step 4: Simplify right side
    21,282.24x = 358,276,092.38
  5. Step 5: Solve for x
    x = 358,276,092.38/21,282.24
  6. Step 6: Final answer
    x = 16,834.51

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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.