Home / 21,457.54-32,175.78-8,973.82

Finding the Fourth Proportional to 21,457.54, 32,175.78 and 8,973.82

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Solution

The fourth proportional to 21,457.54, 32,175.78 and 8,973.82 is: 13,456.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,457.54 : 32,175.78 = 8,973.82 : x
  2. Step 2: Convert to fraction form
    21,457.54/32,175.78 = 8,973.82/x
  3. Step 3: Cross multiply
    21,457.54x = 32,175.78 × 8,973.82
  4. Step 4: Simplify right side
    21,457.54x = 288,739,658.08
  5. Step 5: Solve for x
    x = 288,739,658.08/21,457.54
  6. Step 6: Final answer
    x = 13,456.33

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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.