Home / 28,350.92-42,535.94-12,553.80

Finding the Fourth Proportional to 28,350.92, 42,535.94 and 12,553.80

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Solution

The fourth proportional to 28,350.92, 42,535.94 and 12,553.80 is: 18,834.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,350.92 : 42,535.94 = 12,553.80 : x
  2. Step 2: Convert to fraction form
    28,350.92/42,535.94 = 12,553.80/x
  3. Step 3: Cross multiply
    28,350.92x = 42,535.94 × 12,553.80
  4. Step 4: Simplify right side
    28,350.92x = 533,987,608.62
  5. Step 5: Solve for x
    x = 533,987,608.62/28,350.92
  6. Step 6: Final answer
    x = 18,834.93

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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.