Home / 19,818.26-27,349.42-11,321.50

Finding the Fourth Proportional to 19,818.26, 27,349.42 and 11,321.50

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Solution

The fourth proportional to 19,818.26, 27,349.42 and 11,321.50 is: 15,623.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,818.26 : 27,349.42 = 11,321.50 : x
  2. Step 2: Convert to fraction form
    19,818.26/27,349.42 = 11,321.50/x
  3. Step 3: Cross multiply
    19,818.26x = 27,349.42 × 11,321.50
  4. Step 4: Simplify right side
    19,818.26x = 309,636,458.53
  5. Step 5: Solve for x
    x = 309,636,458.53/19,818.26
  6. Step 6: Final answer
    x = 15,623.80

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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.