Home / 21,080.61-29,088.77-11,648.61

Finding the Fourth Proportional to 21,080.61, 29,088.77 and 11,648.61

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Solution

The fourth proportional to 21,080.61, 29,088.77 and 11,648.61 is: 16,073.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,080.61 : 29,088.77 = 11,648.61 : x
  2. Step 2: Convert to fraction form
    21,080.61/29,088.77 = 11,648.61/x
  3. Step 3: Cross multiply
    21,080.61x = 29,088.77 × 11,648.61
  4. Step 4: Simplify right side
    21,080.61x = 338,843,678.87
  5. Step 5: Solve for x
    x = 338,843,678.87/21,080.61
  6. Step 6: Final answer
    x = 16,073.71

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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.