Home / 31,389.70-43,307.22-17,775.88

Finding the Fourth Proportional to 31,389.70, 43,307.22 and 17,775.88

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Solution

The fourth proportional to 31,389.70, 43,307.22 and 17,775.88 is: 24,524.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,389.70 : 43,307.22 = 17,775.88 : x
  2. Step 2: Convert to fraction form
    31,389.70/43,307.22 = 17,775.88/x
  3. Step 3: Cross multiply
    31,389.70x = 43,307.22 × 17,775.88
  4. Step 4: Simplify right side
    31,389.70x = 769,823,945.85
  5. Step 5: Solve for x
    x = 769,823,945.85/31,389.70
  6. Step 6: Final answer
    x = 24,524.73

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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.