Home / 31,811.58-43,899.71-17,663.45

Finding the Fourth Proportional to 31,811.58, 43,899.71 and 17,663.45

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Solution

The fourth proportional to 31,811.58, 43,899.71 and 17,663.45 is: 24,375.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,811.58 : 43,899.71 = 17,663.45 : x
  2. Step 2: Convert to fraction form
    31,811.58/43,899.71 = 17,663.45/x
  3. Step 3: Cross multiply
    31,811.58x = 43,899.71 × 17,663.45
  4. Step 4: Simplify right side
    31,811.58x = 775,420,024.78
  5. Step 5: Solve for x
    x = 775,420,024.78/31,811.58
  6. Step 6: Final answer
    x = 24,375.40

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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.