Home / 21,192.58-29,251.07-12,245.28

Finding the Fourth Proportional to 21,192.58, 29,251.07 and 12,245.28

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Solution

The fourth proportional to 21,192.58, 29,251.07 and 12,245.28 is: 16,901.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,192.58 : 29,251.07 = 12,245.28 : x
  2. Step 2: Convert to fraction form
    21,192.58/29,251.07 = 12,245.28/x
  3. Step 3: Cross multiply
    21,192.58x = 29,251.07 × 12,245.28
  4. Step 4: Simplify right side
    21,192.58x = 358,187,542.45
  5. Step 5: Solve for x
    x = 358,187,542.45/21,192.58
  6. Step 6: Final answer
    x = 16,901.55

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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.