Home / 21,060.14-29,060.80-12,108.94

Finding the Fourth Proportional to 21,060.14, 29,060.80 and 12,108.94

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Solution

The fourth proportional to 21,060.14, 29,060.80 and 12,108.94 is: 16,709.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,060.14 : 29,060.80 = 12,108.94 : x
  2. Step 2: Convert to fraction form
    21,060.14/29,060.80 = 12,108.94/x
  3. Step 3: Cross multiply
    21,060.14x = 29,060.80 × 12,108.94
  4. Step 4: Simplify right side
    21,060.14x = 351,895,380.63
  5. Step 5: Solve for x
    x = 351,895,380.63/21,060.14
  6. Step 6: Final answer
    x = 16,709.07

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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.