Home / 22,704.64-31,335.68-13,755.84

Finding the Fourth Proportional to 22,704.64, 31,335.68 and 13,755.84

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Solution

The fourth proportional to 22,704.64, 31,335.68 and 13,755.84 is: 18,985.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,704.64 : 31,335.68 = 13,755.84 : x
  2. Step 2: Convert to fraction form
    22,704.64/31,335.68 = 13,755.84/x
  3. Step 3: Cross multiply
    22,704.64x = 31,335.68 × 13,755.84
  4. Step 4: Simplify right side
    22,704.64x = 431,048,600.37
  5. Step 5: Solve for x
    x = 431,048,600.37/22,704.64
  6. Step 6: Final answer
    x = 18,985.04

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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.