Home / 21,065.52-29,070.39-11,634.06

Finding the Fourth Proportional to 21,065.52, 29,070.39 and 11,634.06

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Solution

The fourth proportional to 21,065.52, 29,070.39 and 11,634.06 is: 16,054.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,065.52 : 29,070.39 = 11,634.06 : x
  2. Step 2: Convert to fraction form
    21,065.52/29,070.39 = 11,634.06/x
  3. Step 3: Cross multiply
    21,065.52x = 29,070.39 × 11,634.06
  4. Step 4: Simplify right side
    21,065.52x = 338,206,661.48
  5. Step 5: Solve for x
    x = 338,206,661.48/21,065.52
  6. Step 6: Final answer
    x = 16,054.99

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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.