Home / 19,288.62-28,886.20-13,348.86

Finding the Fourth Proportional to 19,288.62, 28,886.20 and 13,348.86

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Solution

The fourth proportional to 19,288.62, 28,886.20 and 13,348.86 is: 19,990.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,288.62 : 28,886.20 = 13,348.86 : x
  2. Step 2: Convert to fraction form
    19,288.62/28,886.20 = 13,348.86/x
  3. Step 3: Cross multiply
    19,288.62x = 28,886.20 × 13,348.86
  4. Step 4: Simplify right side
    19,288.62x = 385,597,839.73
  5. Step 5: Solve for x
    x = 385,597,839.73/19,288.62
  6. Step 6: Final answer
    x = 19,990.95

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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.