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Finding the Fourth Proportional to 28,925.76, 43,390.14 and 8,150.88

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Solution

The fourth proportional to 28,925.76, 43,390.14 and 8,150.88 is: 12,226.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,925.76 : 43,390.14 = 8,150.88 : x
  2. Step 2: Convert to fraction form
    28,925.76/43,390.14 = 8,150.88/x
  3. Step 3: Cross multiply
    28,925.76x = 43,390.14 × 8,150.88
  4. Step 4: Simplify right side
    28,925.76x = 353,667,824.32
  5. Step 5: Solve for x
    x = 353,667,824.32/28,925.76
  6. Step 6: Final answer
    x = 12,226.74

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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.