Home / 20,839.37-28,753.89-12,344.18

Finding the Fourth Proportional to 20,839.37, 28,753.89 and 12,344.18

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Solution

The fourth proportional to 20,839.37, 28,753.89 and 12,344.18 is: 17,032.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,839.37 : 28,753.89 = 12,344.18 : x
  2. Step 2: Convert to fraction form
    20,839.37/28,753.89 = 12,344.18/x
  3. Step 3: Cross multiply
    20,839.37x = 28,753.89 × 12,344.18
  4. Step 4: Simplify right side
    20,839.37x = 354,943,193.86
  5. Step 5: Solve for x
    x = 354,943,193.86/20,839.37
  6. Step 6: Final answer
    x = 17,032.34

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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.