Home / 21,630.52-29,850.56-12,197.28

Finding the Fourth Proportional to 21,630.52, 29,850.56 and 12,197.28

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Solution

The fourth proportional to 21,630.52, 29,850.56 and 12,197.28 is: 16,832.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,630.52 : 29,850.56 = 12,197.28 : x
  2. Step 2: Convert to fraction form
    21,630.52/29,850.56 = 12,197.28/x
  3. Step 3: Cross multiply
    21,630.52x = 29,850.56 × 12,197.28
  4. Step 4: Simplify right side
    21,630.52x = 364,095,638.48
  5. Step 5: Solve for x
    x = 364,095,638.48/21,630.52
  6. Step 6: Final answer
    x = 16,832.50

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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.