Home / 30,455.36-42,027.84-17,207.36

Finding the Fourth Proportional to 30,455.36, 42,027.84 and 17,207.36

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Solution

The fourth proportional to 30,455.36, 42,027.84 and 17,207.36 is: 23,745.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,455.36 : 42,027.84 = 17,207.36 : x
  2. Step 2: Convert to fraction form
    30,455.36/42,027.84 = 17,207.36/x
  3. Step 3: Cross multiply
    30,455.36x = 42,027.84 × 17,207.36
  4. Step 4: Simplify right side
    30,455.36x = 723,188,172.90
  5. Step 5: Solve for x
    x = 723,188,172.90/30,455.36
  6. Step 6: Final answer
    x = 23,745.84

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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.