Home / 20,877.33-28,815.07-19,196.08

Finding the Fourth Proportional to 20,877.33, 28,815.07 and 19,196.08

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Solution

The fourth proportional to 20,877.33, 28,815.07 and 19,196.08 is: 26,494.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,877.33 : 28,815.07 = 19,196.08 : x
  2. Step 2: Convert to fraction form
    20,877.33/28,815.07 = 19,196.08/x
  3. Step 3: Cross multiply
    20,877.33x = 28,815.07 × 19,196.08
  4. Step 4: Simplify right side
    20,877.33x = 553,136,388.93
  5. Step 5: Solve for x
    x = 553,136,388.93/20,877.33
  6. Step 6: Final answer
    x = 26,494.59

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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.