Home / 31,729.44-43,780.32-19,154.88

Finding the Fourth Proportional to 31,729.44, 43,780.32 and 19,154.88

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Solution

The fourth proportional to 31,729.44, 43,780.32 and 19,154.88 is: 26,429.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,729.44 : 43,780.32 = 19,154.88 : x
  2. Step 2: Convert to fraction form
    31,729.44/43,780.32 = 19,154.88/x
  3. Step 3: Cross multiply
    31,729.44x = 43,780.32 × 19,154.88
  4. Step 4: Simplify right side
    31,729.44x = 838,606,775.96
  5. Step 5: Solve for x
    x = 838,606,775.96/31,729.44
  6. Step 6: Final answer
    x = 26,429.93

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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.