Home / 31,729.10-43,780.60-18,110.93

Finding the Fourth Proportional to 31,729.10, 43,780.60 and 18,110.93

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Solution

The fourth proportional to 31,729.10, 43,780.60 and 18,110.93 is: 24,989.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,729.10 : 43,780.60 = 18,110.93 : x
  2. Step 2: Convert to fraction form
    31,729.10/43,780.60 = 18,110.93/x
  3. Step 3: Cross multiply
    31,729.10x = 43,780.60 × 18,110.93
  4. Step 4: Simplify right side
    31,729.10x = 792,907,117.78
  5. Step 5: Solve for x
    x = 792,907,117.78/31,729.10
  6. Step 6: Final answer
    x = 24,989.90

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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.