Home / 21,458.25-32,176.44-8,974.89

Finding the Fourth Proportional to 21,458.25, 32,176.44 and 8,974.89

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Solution

The fourth proportional to 21,458.25, 32,176.44 and 8,974.89 is: 13,457.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,458.25 : 32,176.44 = 8,974.89 : x
  2. Step 2: Convert to fraction form
    21,458.25/32,176.44 = 8,974.89/x
  3. Step 3: Cross multiply
    21,458.25x = 32,176.44 × 8,974.89
  4. Step 4: Simplify right side
    21,458.25x = 288,780,009.59
  5. Step 5: Solve for x
    x = 288,780,009.59/21,458.25
  6. Step 6: Final answer
    x = 13,457.76

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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.