Home / 20,673.25-28,486.80-19,556.66

Finding the Fourth Proportional to 20,673.25, 28,486.80 and 19,556.66

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Solution

The fourth proportional to 20,673.25, 28,486.80 and 19,556.66 is: 26,948.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,673.25 : 28,486.80 = 19,556.66 : x
  2. Step 2: Convert to fraction form
    20,673.25/28,486.80 = 19,556.66/x
  3. Step 3: Cross multiply
    20,673.25x = 28,486.80 × 19,556.66
  4. Step 4: Simplify right side
    20,673.25x = 557,106,733.31
  5. Step 5: Solve for x
    x = 557,106,733.31/20,673.25
  6. Step 6: Final answer
    x = 26,948.20

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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.