Home / 21,571.11-29,768.92-12,011.49

Finding the Fourth Proportional to 21,571.11, 29,768.92 and 12,011.49

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Solution

The fourth proportional to 21,571.11, 29,768.92 and 12,011.49 is: 16,576.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,571.11 : 29,768.92 = 12,011.49 : x
  2. Step 2: Convert to fraction form
    21,571.11/29,768.92 = 12,011.49/x
  3. Step 3: Cross multiply
    21,571.11x = 29,768.92 × 12,011.49
  4. Step 4: Simplify right side
    21,571.11x = 357,569,054.86
  5. Step 5: Solve for x
    x = 357,569,054.86/21,571.11
  6. Step 6: Final answer
    x = 16,576.29

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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.