Home / 22,145.79-30,560.10-12,584.43

Finding the Fourth Proportional to 22,145.79, 30,560.10 and 12,584.43

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Solution

The fourth proportional to 22,145.79, 30,560.10 and 12,584.43 is: 17,365.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,145.79 : 30,560.10 = 12,584.43 : x
  2. Step 2: Convert to fraction form
    22,145.79/30,560.10 = 12,584.43/x
  3. Step 3: Cross multiply
    22,145.79x = 30,560.10 × 12,584.43
  4. Step 4: Simplify right side
    22,145.79x = 384,581,439.24
  5. Step 5: Solve for x
    x = 384,581,439.24/22,145.79
  6. Step 6: Final answer
    x = 17,365.89

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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.