Home / 28,990.58-43,486.17-9,268.70

Finding the Fourth Proportional to 28,990.58, 43,486.17 and 9,268.70

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Solution

The fourth proportional to 28,990.58, 43,486.17 and 9,268.70 is: 13,903.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,990.58 : 43,486.17 = 9,268.70 : x
  2. Step 2: Convert to fraction form
    28,990.58/43,486.17 = 9,268.70/x
  3. Step 3: Cross multiply
    28,990.58x = 43,486.17 × 9,268.70
  4. Step 4: Simplify right side
    28,990.58x = 403,060,263.88
  5. Step 5: Solve for x
    x = 403,060,263.88/28,990.58
  6. Step 6: Final answer
    x = 13,903.15

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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.