Home / 21,377.34-29,500.52-11,945.91

Finding the Fourth Proportional to 21,377.34, 29,500.52 and 11,945.91

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Solution

The fourth proportional to 21,377.34, 29,500.52 and 11,945.91 is: 16,485.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,377.34 : 29,500.52 = 11,945.91 : x
  2. Step 2: Convert to fraction form
    21,377.34/29,500.52 = 11,945.91/x
  3. Step 3: Cross multiply
    21,377.34x = 29,500.52 × 11,945.91
  4. Step 4: Simplify right side
    21,377.34x = 352,410,349.64
  5. Step 5: Solve for x
    x = 352,410,349.64/21,377.34
  6. Step 6: Final answer
    x = 16,485.23

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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.