Home / 21,173.52-29,218.28-12,098.54

Finding the Fourth Proportional to 21,173.52, 29,218.28 and 12,098.54

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Solution

The fourth proportional to 21,173.52, 29,218.28 and 12,098.54 is: 16,695.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,173.52 : 29,218.28 = 12,098.54 : x
  2. Step 2: Convert to fraction form
    21,173.52/29,218.28 = 12,098.54/x
  3. Step 3: Cross multiply
    21,173.52x = 29,218.28 × 12,098.54
  4. Step 4: Simplify right side
    21,173.52x = 353,498,632.60
  5. Step 5: Solve for x
    x = 353,498,632.60/21,173.52
  6. Step 6: Final answer
    x = 16,695.32

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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.