Home / 21,800.47-30,085.23-12,241.12

Finding the Fourth Proportional to 21,800.47, 30,085.23 and 12,241.12

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Solution

The fourth proportional to 21,800.47, 30,085.23 and 12,241.12 is: 16,893.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,800.47 : 30,085.23 = 12,241.12 : x
  2. Step 2: Convert to fraction form
    21,800.47/30,085.23 = 12,241.12/x
  3. Step 3: Cross multiply
    21,800.47x = 30,085.23 × 12,241.12
  4. Step 4: Simplify right side
    21,800.47x = 368,276,910.66
  5. Step 5: Solve for x
    x = 368,276,910.66/21,800.47
  6. Step 6: Final answer
    x = 16,893.07

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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.