Home / 28,987.44-43,447.56-13,372.56

Finding the Fourth Proportional to 28,987.44, 43,447.56 and 13,372.56

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Solution

The fourth proportional to 28,987.44, 43,447.56 and 13,372.56 is: 20,043.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,987.44 : 43,447.56 = 13,372.56 : x
  2. Step 2: Convert to fraction form
    28,987.44/43,447.56 = 13,372.56/x
  3. Step 3: Cross multiply
    28,987.44x = 43,447.56 × 13,372.56
  4. Step 4: Simplify right side
    28,987.44x = 581,005,102.95
  5. Step 5: Solve for x
    x = 581,005,102.95/28,987.44
  6. Step 6: Final answer
    x = 20,043.34

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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.