Home / 19,083.20-28,624.80-13,251.20

Finding the Fourth Proportional to 19,083.20, 28,624.80 and 13,251.20

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Solution

The fourth proportional to 19,083.20, 28,624.80 and 13,251.20 is: 19,876.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,083.20 : 28,624.80 = 13,251.20 : x
  2. Step 2: Convert to fraction form
    19,083.20/28,624.80 = 13,251.20/x
  3. Step 3: Cross multiply
    19,083.20x = 28,624.80 × 13,251.20
  4. Step 4: Simplify right side
    19,083.20x = 379,312,949.76
  5. Step 5: Solve for x
    x = 379,312,949.76/19,083.20
  6. Step 6: Final answer
    x = 19,876.80

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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.