Home / 20,876.33-28,813.69-19,195.08

Finding the Fourth Proportional to 20,876.33, 28,813.69 and 19,195.08

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Solution

The fourth proportional to 20,876.33, 28,813.69 and 19,195.08 is: 26,493.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,876.33 : 28,813.69 = 19,195.08 : x
  2. Step 2: Convert to fraction form
    20,876.33/28,813.69 = 19,195.08/x
  3. Step 3: Cross multiply
    20,876.33x = 28,813.69 × 19,195.08
  4. Step 4: Simplify right side
    20,876.33x = 553,081,036.66
  5. Step 5: Solve for x
    x = 553,081,036.66/20,876.33
  6. Step 6: Final answer
    x = 26,493.21

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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.