Home / 28,255.88-42,382.79-8,533.93

Finding the Fourth Proportional to 28,255.88, 42,382.79 and 8,533.93

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Solution

The fourth proportional to 28,255.88, 42,382.79 and 8,533.93 is: 12,800.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,255.88 : 42,382.79 = 8,533.93 : x
  2. Step 2: Convert to fraction form
    28,255.88/42,382.79 = 8,533.93/x
  3. Step 3: Cross multiply
    28,255.88x = 42,382.79 × 8,533.93
  4. Step 4: Simplify right side
    28,255.88x = 361,691,763.06
  5. Step 5: Solve for x
    x = 361,691,763.06/28,255.88
  6. Step 6: Final answer
    x = 12,800.58

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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.