Home / 28,897.30-43,350.15-12,257.30

Finding the Fourth Proportional to 28,897.30, 43,350.15 and 12,257.30

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Solution

The fourth proportional to 28,897.30, 43,350.15 and 12,257.30 is: 18,387.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,897.30 : 43,350.15 = 12,257.30 : x
  2. Step 2: Convert to fraction form
    28,897.30/43,350.15 = 12,257.30/x
  3. Step 3: Cross multiply
    28,897.30x = 43,350.15 × 12,257.30
  4. Step 4: Simplify right side
    28,897.30x = 531,355,793.60
  5. Step 5: Solve for x
    x = 531,355,793.60/28,897.30
  6. Step 6: Final answer
    x = 18,387.73

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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.