Home / 21,347.03-31,998.68-8,874.30

Finding the Fourth Proportional to 21,347.03, 31,998.68 and 8,874.30

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Solution

The fourth proportional to 21,347.03, 31,998.68 and 8,874.30 is: 13,302.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,347.03 : 31,998.68 = 8,874.30 : x
  2. Step 2: Convert to fraction form
    21,347.03/31,998.68 = 8,874.30/x
  3. Step 3: Cross multiply
    21,347.03x = 31,998.68 × 8,874.30
  4. Step 4: Simplify right side
    21,347.03x = 283,965,885.92
  5. Step 5: Solve for x
    x = 283,965,885.92/21,347.03
  6. Step 6: Final answer
    x = 13,302.36

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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.