Home / 23,135.30-34,721.20-11,890.20

Finding the Fourth Proportional to 23,135.30, 34,721.20 and 11,890.20

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Solution

The fourth proportional to 23,135.30, 34,721.20 and 11,890.20 is: 17,844.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    23,135.30 : 34,721.20 = 11,890.20 : x
  2. Step 2: Convert to fraction form
    23,135.30/34,721.20 = 11,890.20/x
  3. Step 3: Cross multiply
    23,135.30x = 34,721.20 × 11,890.20
  4. Step 4: Simplify right side
    23,135.30x = 412,842,012.24
  5. Step 5: Solve for x
    x = 412,842,012.24/23,135.30
  6. Step 6: Final answer
    x = 17,844.68

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.