Home / 21,632.84-29,847.66-12,675.54

Finding the Fourth Proportional to 21,632.84, 29,847.66 and 12,675.54

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Solution

The fourth proportional to 21,632.84, 29,847.66 and 12,675.54 is: 17,488.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,632.84 : 29,847.66 = 12,675.54 : x
  2. Step 2: Convert to fraction form
    21,632.84/29,847.66 = 12,675.54/x
  3. Step 3: Cross multiply
    21,632.84x = 29,847.66 × 12,675.54
  4. Step 4: Simplify right side
    21,632.84x = 378,335,208.24
  5. Step 5: Solve for x
    x = 378,335,208.24/21,632.84
  6. Step 6: Final answer
    x = 17,488.93

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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.