Home / 22,714.56-31,338.80-13,759.20

Finding the Fourth Proportional to 22,714.56, 31,338.80 and 13,759.20

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Solution

The fourth proportional to 22,714.56, 31,338.80 and 13,759.20 is: 18,983.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,714.56 : 31,338.80 = 13,759.20 : x
  2. Step 2: Convert to fraction form
    22,714.56/31,338.80 = 13,759.20/x
  3. Step 3: Cross multiply
    22,714.56x = 31,338.80 × 13,759.20
  4. Step 4: Simplify right side
    22,714.56x = 431,196,816.96
  5. Step 5: Solve for x
    x = 431,196,816.96/22,714.56
  6. Step 6: Final answer
    x = 18,983.28

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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.