Home / 21,364.36-32,043.90-8,876.68

Finding the Fourth Proportional to 21,364.36, 32,043.90 and 8,876.68

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Solution

The fourth proportional to 21,364.36, 32,043.90 and 8,876.68 is: 13,313.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,364.36 : 32,043.90 = 8,876.68 : x
  2. Step 2: Convert to fraction form
    21,364.36/32,043.90 = 8,876.68/x
  3. Step 3: Cross multiply
    21,364.36x = 32,043.90 × 8,876.68
  4. Step 4: Simplify right side
    21,364.36x = 284,443,446.25
  5. Step 5: Solve for x
    x = 284,443,446.25/21,364.36
  6. Step 6: Final answer
    x = 13,313.92

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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.