Home / 22,755.22-31,402.34-12,684.30

Finding the Fourth Proportional to 22,755.22, 31,402.34 and 12,684.30

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Solution

The fourth proportional to 22,755.22, 31,402.34 and 12,684.30 is: 17,504.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,755.22 : 31,402.34 = 12,684.30 : x
  2. Step 2: Convert to fraction form
    22,755.22/31,402.34 = 12,684.30/x
  3. Step 3: Cross multiply
    22,755.22x = 31,402.34 × 12,684.30
  4. Step 4: Simplify right side
    22,755.22x = 398,316,701.26
  5. Step 5: Solve for x
    x = 398,316,701.26/22,755.22
  6. Step 6: Final answer
    x = 17,504.41

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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.