Home / 28,445.82-42,679.80-11,801.64

Finding the Fourth Proportional to 28,445.82, 42,679.80 and 11,801.64

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Solution

The fourth proportional to 28,445.82, 42,679.80 and 11,801.64 is: 17,707.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,445.82 : 42,679.80 = 11,801.64 : x
  2. Step 2: Convert to fraction form
    28,445.82/42,679.80 = 11,801.64/x
  3. Step 3: Cross multiply
    28,445.82x = 42,679.80 × 11,801.64
  4. Step 4: Simplify right side
    28,445.82x = 503,691,634.87
  5. Step 5: Solve for x
    x = 503,691,634.87/28,445.82
  6. Step 6: Final answer
    x = 17,707.05

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.