Home / 20,634.72-30,953.52-8,948.64

Finding the Fourth Proportional to 20,634.72, 30,953.52 and 8,948.64

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Solution

The fourth proportional to 20,634.72, 30,953.52 and 8,948.64 is: 13,423.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,634.72 : 30,953.52 = 8,948.64 : x
  2. Step 2: Convert to fraction form
    20,634.72/30,953.52 = 8,948.64/x
  3. Step 3: Cross multiply
    20,634.72x = 30,953.52 × 8,948.64
  4. Step 4: Simplify right side
    20,634.72x = 276,991,907.21
  5. Step 5: Solve for x
    x = 276,991,907.21/20,634.72
  6. Step 6: Final answer
    x = 13,423.58

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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.