Home / 28,543.63-42,819.55-8,823.73

Finding the Fourth Proportional to 28,543.63, 42,819.55 and 8,823.73

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Solution

The fourth proportional to 28,543.63, 42,819.55 and 8,823.73 is: 13,236.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,543.63 : 42,819.55 = 8,823.73 : x
  2. Step 2: Convert to fraction form
    28,543.63/42,819.55 = 8,823.73/x
  3. Step 3: Cross multiply
    28,543.63x = 42,819.55 × 8,823.73
  4. Step 4: Simplify right side
    28,543.63x = 377,827,991.08
  5. Step 5: Solve for x
    x = 377,827,991.08/28,543.63
  6. Step 6: Final answer
    x = 13,236.86

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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.