Home / 21,403.13-29,536.36-11,843.71

Finding the Fourth Proportional to 21,403.13, 29,536.36 and 11,843.71

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Solution

The fourth proportional to 21,403.13, 29,536.36 and 11,843.71 is: 16,344.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,403.13 : 29,536.36 = 11,843.71 : x
  2. Step 2: Convert to fraction form
    21,403.13/29,536.36 = 11,843.71/x
  3. Step 3: Cross multiply
    21,403.13x = 29,536.36 × 11,843.71
  4. Step 4: Simplify right side
    21,403.13x = 349,819,934.61
  5. Step 5: Solve for x
    x = 349,819,934.61/21,403.13
  6. Step 6: Final answer
    x = 16,344.34

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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.