Home / 21,093.95-29,108.58-11,660.69

Finding the Fourth Proportional to 21,093.95, 29,108.58 and 11,660.69

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Solution

The fourth proportional to 21,093.95, 29,108.58 and 11,660.69 is: 16,091.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,093.95 : 29,108.58 = 11,660.69 : x
  2. Step 2: Convert to fraction form
    21,093.95/29,108.58 = 11,660.69/x
  3. Step 3: Cross multiply
    21,093.95x = 29,108.58 × 11,660.69
  4. Step 4: Simplify right side
    21,093.95x = 339,426,127.72
  5. Step 5: Solve for x
    x = 339,426,127.72/21,093.95
  6. Step 6: Final answer
    x = 16,091.16

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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.