Home / 28,543.14-42,811.80-8,819.64

Finding the Fourth Proportional to 28,543.14, 42,811.80 and 8,819.64

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Solution

The fourth proportional to 28,543.14, 42,811.80 and 8,819.64 is: 13,228.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,543.14 : 42,811.80 = 8,819.64 : x
  2. Step 2: Convert to fraction form
    28,543.14/42,811.80 = 8,819.64/x
  3. Step 3: Cross multiply
    28,543.14x = 42,811.80 × 8,819.64
  4. Step 4: Simplify right side
    28,543.14x = 377,584,663.75
  5. Step 5: Solve for x
    x = 377,584,663.75/28,543.14
  6. Step 6: Final answer
    x = 13,228.56

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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.