Home / 21,160.08-29,236.08-16,717.92

Finding the Fourth Proportional to 21,160.08, 29,236.08 and 16,717.92

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Solution

The fourth proportional to 21,160.08, 29,236.08 and 16,717.92 is: 23,098.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,160.08 : 29,236.08 = 16,717.92 : x
  2. Step 2: Convert to fraction form
    21,160.08/29,236.08 = 16,717.92/x
  3. Step 3: Cross multiply
    21,160.08x = 29,236.08 × 16,717.92
  4. Step 4: Simplify right side
    21,160.08x = 488,766,446.55
  5. Step 5: Solve for x
    x = 488,766,446.55/21,160.08
  6. Step 6: Final answer
    x = 23,098.52

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.