Home / 20,336.62-28,064.26-11,384.13

Finding the Fourth Proportional to 20,336.62, 28,064.26 and 11,384.13

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Solution

The fourth proportional to 20,336.62, 28,064.26 and 11,384.13 is: 15,709.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,336.62 : 28,064.26 = 11,384.13 : x
  2. Step 2: Convert to fraction form
    20,336.62/28,064.26 = 11,384.13/x
  3. Step 3: Cross multiply
    20,336.62x = 28,064.26 × 11,384.13
  4. Step 4: Simplify right side
    20,336.62x = 319,487,081.77
  5. Step 5: Solve for x
    x = 319,487,081.77/20,336.62
  6. Step 6: Final answer
    x = 15,709.94

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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.