Home / 14,204.20-21,306.30-12,821.80

Finding the Fourth Proportional to 14,204.20, 21,306.30 and 12,821.80

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Solution

The fourth proportional to 14,204.20, 21,306.30 and 12,821.80 is: 19,232.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,204.20 : 21,306.30 = 12,821.80 : x
  2. Step 2: Convert to fraction form
    14,204.20/21,306.30 = 12,821.80/x
  3. Step 3: Cross multiply
    14,204.20x = 21,306.30 × 12,821.80
  4. Step 4: Simplify right side
    14,204.20x = 273,185,117.34
  5. Step 5: Solve for x
    x = 273,185,117.34/14,204.20
  6. Step 6: Final answer
    x = 19,232.70

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.