Home / 20,573.04-28,390.82-11,620.56

Finding the Fourth Proportional to 20,573.04, 28,390.82 and 11,620.56

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Solution

The fourth proportional to 20,573.04, 28,390.82 and 11,620.56 is: 16,036.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,573.04 : 28,390.82 = 11,620.56 : x
  2. Step 2: Convert to fraction form
    20,573.04/28,390.82 = 11,620.56/x
  3. Step 3: Cross multiply
    20,573.04x = 28,390.82 × 11,620.56
  4. Step 4: Simplify right side
    20,573.04x = 329,917,227.26
  5. Step 5: Solve for x
    x = 329,917,227.26/20,573.04
  6. Step 6: Final answer
    x = 16,036.39

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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.