Home / 30,610.10-42,242.11-17,181.52

Finding the Fourth Proportional to 30,610.10, 42,242.11 and 17,181.52

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Solution

The fourth proportional to 30,610.10, 42,242.11 and 17,181.52 is: 23,710.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,610.10 : 42,242.11 = 17,181.52 : x
  2. Step 2: Convert to fraction form
    30,610.10/42,242.11 = 17,181.52/x
  3. Step 3: Cross multiply
    30,610.10x = 42,242.11 × 17,181.52
  4. Step 4: Simplify right side
    30,610.10x = 725,783,509.25
  5. Step 5: Solve for x
    x = 725,783,509.25/30,610.10
  6. Step 6: Final answer
    x = 23,710.59

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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.