Home / 21,948.84-30,289.32-12,517.38

Finding the Fourth Proportional to 21,948.84, 30,289.32 and 12,517.38

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Solution

The fourth proportional to 21,948.84, 30,289.32 and 12,517.38 is: 17,273.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,948.84 : 30,289.32 = 12,517.38 : x
  2. Step 2: Convert to fraction form
    21,948.84/30,289.32 = 12,517.38/x
  3. Step 3: Cross multiply
    21,948.84x = 30,289.32 × 12,517.38
  4. Step 4: Simplify right side
    21,948.84x = 379,142,928.38
  5. Step 5: Solve for x
    x = 379,142,928.38/21,948.84
  6. Step 6: Final answer
    x = 17,273.94

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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.