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Finding the Fourth Proportional to 26,585.84, 39,813.09 and 19,815.19

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Solution

The fourth proportional to 26,585.84, 39,813.09 and 19,815.19 is: 29,673.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,585.84 : 39,813.09 = 19,815.19 : x
  2. Step 2: Convert to fraction form
    26,585.84/39,813.09 = 19,815.19/x
  3. Step 3: Cross multiply
    26,585.84x = 39,813.09 × 19,815.19
  4. Step 4: Simplify right side
    26,585.84x = 788,903,843.30
  5. Step 5: Solve for x
    x = 788,903,843.30/26,585.84
  6. Step 6: Final answer
    x = 29,673.84

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1.5x scale

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.