Home / 21,232.35-29,300.61-11,672.87

Finding the Fourth Proportional to 21,232.35, 29,300.61 and 11,672.87

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Solution

The fourth proportional to 21,232.35, 29,300.61 and 11,672.87 is: 16,108.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,232.35 : 29,300.61 = 11,672.87 : x
  2. Step 2: Convert to fraction form
    21,232.35/29,300.61 = 11,672.87/x
  3. Step 3: Cross multiply
    21,232.35x = 29,300.61 × 11,672.87
  4. Step 4: Simplify right side
    21,232.35x = 342,022,064.95
  5. Step 5: Solve for x
    x = 342,022,064.95/21,232.35
  6. Step 6: Final answer
    x = 16,108.54

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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.