Home / 30,567.17-42,181.97-17,138.39

Finding the Fourth Proportional to 30,567.17, 42,181.97 and 17,138.39

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Solution

The fourth proportional to 30,567.17, 42,181.97 and 17,138.39 is: 23,650.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,567.17 : 42,181.97 = 17,138.39 : x
  2. Step 2: Convert to fraction form
    30,567.17/42,181.97 = 17,138.39/x
  3. Step 3: Cross multiply
    30,567.17x = 42,181.97 × 17,138.39
  4. Step 4: Simplify right side
    30,567.17x = 722,930,756.23
  5. Step 5: Solve for x
    x = 722,930,756.23/30,567.17
  6. Step 6: Final answer
    x = 23,650.56

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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.