Home / 28,925.28-43,388.64-8,148

Finding the Fourth Proportional to 28,925.28, 43,388.64 and 8,148

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Solution

The fourth proportional to 28,925.28, 43,388.64 and 8,148 is: 12,222.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,925.28 : 43,388.64 = 8,148 : x
  2. Step 2: Convert to fraction form
    28,925.28/43,388.64 = 8,148/x
  3. Step 3: Cross multiply
    28,925.28x = 43,388.64 × 8,148
  4. Step 4: Simplify right side
    28,925.28x = 353,530,638.72
  5. Step 5: Solve for x
    x = 353,530,638.72/28,925.28
  6. Step 6: Final answer
    x = 12,222.20

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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.