Home / 28,811.58-43,217.38-9,091.68

Finding the Fourth Proportional to 28,811.58, 43,217.38 and 9,091.68

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Solution

The fourth proportional to 28,811.58, 43,217.38 and 9,091.68 is: 13,637.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,811.58 : 43,217.38 = 9,091.68 : x
  2. Step 2: Convert to fraction form
    28,811.58/43,217.38 = 9,091.68/x
  3. Step 3: Cross multiply
    28,811.58x = 43,217.38 × 9,091.68
  4. Step 4: Simplify right side
    28,811.58x = 392,918,589.40
  5. Step 5: Solve for x
    x = 392,918,589.40/28,811.58
  6. Step 6: Final answer
    x = 13,637.52

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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.