Home / 28,532.20-42,798.38-7,755.68

Finding the Fourth Proportional to 28,532.20, 42,798.38 and 7,755.68

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Solution

The fourth proportional to 28,532.20, 42,798.38 and 7,755.68 is: 11,633.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,532.20 : 42,798.38 = 7,755.68 : x
  2. Step 2: Convert to fraction form
    28,532.20/42,798.38 = 7,755.68/x
  3. Step 3: Cross multiply
    28,532.20x = 42,798.38 × 7,755.68
  4. Step 4: Simplify right side
    28,532.20x = 331,930,539.80
  5. Step 5: Solve for x
    x = 331,930,539.80/28,532.20
  6. Step 6: Final answer
    x = 11,633.54

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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.