Home / 21,377.52-29,500.91-11,946.09

Finding the Fourth Proportional to 21,377.52, 29,500.91 and 11,946.09

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Solution

The fourth proportional to 21,377.52, 29,500.91 and 11,946.09 is: 16,485.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,377.52 : 29,500.91 = 11,946.09 : x
  2. Step 2: Convert to fraction form
    21,377.52/29,500.91 = 11,946.09/x
  3. Step 3: Cross multiply
    21,377.52x = 29,500.91 × 11,946.09
  4. Step 4: Simplify right side
    21,377.52x = 352,420,466.21
  5. Step 5: Solve for x
    x = 352,420,466.21/21,377.52
  6. Step 6: Final answer
    x = 16,485.56

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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.