Home / 30,800.70-42,507.45-17,375.22

Finding the Fourth Proportional to 30,800.70, 42,507.45 and 17,375.22

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Solution

The fourth proportional to 30,800.70, 42,507.45 and 17,375.22 is: 23,979.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,800.70 : 42,507.45 = 17,375.22 : x
  2. Step 2: Convert to fraction form
    30,800.70/42,507.45 = 17,375.22/x
  3. Step 3: Cross multiply
    30,800.70x = 42,507.45 × 17,375.22
  4. Step 4: Simplify right side
    30,800.70x = 738,576,295.39
  5. Step 5: Solve for x
    x = 738,576,295.39/30,800.70
  6. Step 6: Final answer
    x = 23,979.20

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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.