Home / 31,481.77-43,446.44-17,870.78

Finding the Fourth Proportional to 31,481.77, 43,446.44 and 17,870.78

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Solution

The fourth proportional to 31,481.77, 43,446.44 and 17,870.78 is: 24,662.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,481.77 : 43,446.44 = 17,870.78 : x
  2. Step 2: Convert to fraction form
    31,481.77/43,446.44 = 17,870.78/x
  3. Step 3: Cross multiply
    31,481.77x = 43,446.44 × 17,870.78
  4. Step 4: Simplify right side
    31,481.77x = 776,421,598.47
  5. Step 5: Solve for x
    x = 776,421,598.47/31,481.77
  6. Step 6: Final answer
    x = 24,662.58

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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.