Home / 20,410.58-28,164.67-11,456.33

Finding the Fourth Proportional to 20,410.58, 28,164.67 and 11,456.33

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Solution

The fourth proportional to 20,410.58, 28,164.67 and 11,456.33 is: 15,808.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,410.58 : 28,164.67 = 11,456.33 : x
  2. Step 2: Convert to fraction form
    20,410.58/28,164.67 = 11,456.33/x
  3. Step 3: Cross multiply
    20,410.58x = 28,164.67 × 11,456.33
  4. Step 4: Simplify right side
    20,410.58x = 322,663,775.04
  5. Step 5: Solve for x
    x = 322,663,775.04/20,410.58
  6. Step 6: Final answer
    x = 15,808.66

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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.