Home / 20,030.80-27,644.52-11,078.96

Finding the Fourth Proportional to 20,030.80, 27,644.52 and 11,078.96

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Solution

The fourth proportional to 20,030.80, 27,644.52 and 11,078.96 is: 15,290.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,030.80 : 27,644.52 = 11,078.96 : x
  2. Step 2: Convert to fraction form
    20,030.80/27,644.52 = 11,078.96/x
  3. Step 3: Cross multiply
    20,030.80x = 27,644.52 × 11,078.96
  4. Step 4: Simplify right side
    20,030.80x = 306,272,531.30
  5. Step 5: Solve for x
    x = 306,272,531.30/20,030.80
  6. Step 6: Final answer
    x = 15,290.08

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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.