Home / 21,200.93-29,259.60-12,127.14

Finding the Fourth Proportional to 21,200.93, 29,259.60 and 12,127.14

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Solution

The fourth proportional to 21,200.93, 29,259.60 and 12,127.14 is: 16,736.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,200.93 : 29,259.60 = 12,127.14 : x
  2. Step 2: Convert to fraction form
    21,200.93/29,259.60 = 12,127.14/x
  3. Step 3: Cross multiply
    21,200.93x = 29,259.60 × 12,127.14
  4. Step 4: Simplify right side
    21,200.93x = 354,835,265.54
  5. Step 5: Solve for x
    x = 354,835,265.54/21,200.93
  6. Step 6: Final answer
    x = 16,736.78

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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.