Home / 22,755.49-31,403.64-12,684.01

Finding the Fourth Proportional to 22,755.49, 31,403.64 and 12,684.01

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Solution

The fourth proportional to 22,755.49, 31,403.64 and 12,684.01 is: 17,504.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,755.49 : 31,403.64 = 12,684.01 : x
  2. Step 2: Convert to fraction form
    22,755.49/31,403.64 = 12,684.01/x
  3. Step 3: Cross multiply
    22,755.49x = 31,403.64 × 12,684.01
  4. Step 4: Simplify right side
    22,755.49x = 398,324,023.41
  5. Step 5: Solve for x
    x = 398,324,023.41/22,755.49
  6. Step 6: Final answer
    x = 17,504.52

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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.