Home / 21,267.28-29,348.22-11,835.64

Finding the Fourth Proportional to 21,267.28, 29,348.22 and 11,835.64

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Solution

The fourth proportional to 21,267.28, 29,348.22 and 11,835.64 is: 16,332.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,267.28 : 29,348.22 = 11,835.64 : x
  2. Step 2: Convert to fraction form
    21,267.28/29,348.22 = 11,835.64/x
  3. Step 3: Cross multiply
    21,267.28x = 29,348.22 × 11,835.64
  4. Step 4: Simplify right side
    21,267.28x = 347,354,966.56
  5. Step 5: Solve for x
    x = 347,354,966.56/21,267.28
  6. Step 6: Final answer
    x = 16,332.83

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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.