Home / 21,636.06-29,857.77-11,700.06

Finding the Fourth Proportional to 21,636.06, 29,857.77 and 11,700.06

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Solution

The fourth proportional to 21,636.06, 29,857.77 and 11,700.06 is: 16,146.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,636.06 : 29,857.77 = 11,700.06 : x
  2. Step 2: Convert to fraction form
    21,636.06/29,857.77 = 11,700.06/x
  3. Step 3: Cross multiply
    21,636.06x = 29,857.77 × 11,700.06
  4. Step 4: Simplify right side
    21,636.06x = 349,337,700.47
  5. Step 5: Solve for x
    x = 349,337,700.47/21,636.06
  6. Step 6: Final answer
    x = 16,146.09

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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.