Home / 20,336.92-28,064.82-11,384.38

Finding the Fourth Proportional to 20,336.92, 28,064.82 and 11,384.38

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Solution

The fourth proportional to 20,336.92, 28,064.82 and 11,384.38 is: 15,710.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,336.92 : 28,064.82 = 11,384.38 : x
  2. Step 2: Convert to fraction form
    20,336.92/28,064.82 = 11,384.38/x
  3. Step 3: Cross multiply
    20,336.92x = 28,064.82 × 11,384.38
  4. Step 4: Simplify right side
    20,336.92x = 319,500,575.51
  5. Step 5: Solve for x
    x = 319,500,575.51/20,336.92
  6. Step 6: Final answer
    x = 15,710.37

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.