Home / 28,207.56-42,316.21-9,489.41

Finding the Fourth Proportional to 28,207.56, 42,316.21 and 9,489.41

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Solution

The fourth proportional to 28,207.56, 42,316.21 and 9,489.41 is: 14,235.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,207.56 : 42,316.21 = 9,489.41 : x
  2. Step 2: Convert to fraction form
    28,207.56/42,316.21 = 9,489.41/x
  3. Step 3: Cross multiply
    28,207.56x = 42,316.21 × 9,489.41
  4. Step 4: Simplify right side
    28,207.56x = 401,555,654.76
  5. Step 5: Solve for x
    x = 401,555,654.76/28,207.56
  6. Step 6: Final answer
    x = 14,235.75

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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.