Home / 31,221.45-43,082.69-17,795.70

Finding the Fourth Proportional to 31,221.45, 43,082.69 and 17,795.70

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Solution

The fourth proportional to 31,221.45, 43,082.69 and 17,795.70 is: 24,556.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,221.45 : 43,082.69 = 17,795.70 : x
  2. Step 2: Convert to fraction form
    31,221.45/43,082.69 = 17,795.70/x
  3. Step 3: Cross multiply
    31,221.45x = 43,082.69 × 17,795.70
  4. Step 4: Simplify right side
    31,221.45x = 766,686,537.45
  5. Step 5: Solve for x
    x = 766,686,537.45/31,221.45
  6. Step 6: Final answer
    x = 24,556.40

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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.