Home / 21,744.94-30,007.18-12,313.53

Finding the Fourth Proportional to 21,744.94, 30,007.18 and 12,313.53

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Solution

The fourth proportional to 21,744.94, 30,007.18 and 12,313.53 is: 16,992.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,744.94 : 30,007.18 = 12,313.53 : x
  2. Step 2: Convert to fraction form
    21,744.94/30,007.18 = 12,313.53/x
  3. Step 3: Cross multiply
    21,744.94x = 30,007.18 × 12,313.53
  4. Step 4: Simplify right side
    21,744.94x = 369,494,311.15
  5. Step 5: Solve for x
    x = 369,494,311.15/21,744.94
  6. Step 6: Final answer
    x = 16,992.20

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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.