Home / 22,143.68-30,554.52-12,712.04

Finding the Fourth Proportional to 22,143.68, 30,554.52 and 12,712.04

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Solution

The fourth proportional to 22,143.68, 30,554.52 and 12,712.04 is: 17,540.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,143.68 : 30,554.52 = 12,712.04 : x
  2. Step 2: Convert to fraction form
    22,143.68/30,554.52 = 12,712.04/x
  3. Step 3: Cross multiply
    22,143.68x = 30,554.52 × 12,712.04
  4. Step 4: Simplify right side
    22,143.68x = 388,410,280.42
  5. Step 5: Solve for x
    x = 388,410,280.42/22,143.68
  6. Step 6: Final answer
    x = 17,540.46

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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.