Home / 21,958.25-30,302.39-12,526.61

Finding the Fourth Proportional to 21,958.25, 30,302.39 and 12,526.61

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Solution

The fourth proportional to 21,958.25, 30,302.39 and 12,526.61 is: 17,286.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,958.25 : 30,302.39 = 12,526.61 : x
  2. Step 2: Convert to fraction form
    21,958.25/30,302.39 = 12,526.61/x
  3. Step 3: Cross multiply
    21,958.25x = 30,302.39 × 12,526.61
  4. Step 4: Simplify right side
    21,958.25x = 379,586,158.96
  5. Step 5: Solve for x
    x = 379,586,158.96/21,958.25
  6. Step 6: Final answer
    x = 17,286.72

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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.