Home / 21,531.24-29,713.86-11,973.83

Finding the Fourth Proportional to 21,531.24, 29,713.86 and 11,973.83

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Solution

The fourth proportional to 21,531.24, 29,713.86 and 11,973.83 is: 16,524.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,531.24 : 29,713.86 = 11,973.83 : x
  2. Step 2: Convert to fraction form
    21,531.24/29,713.86 = 11,973.83/x
  3. Step 3: Cross multiply
    21,531.24x = 29,713.86 × 11,973.83
  4. Step 4: Simplify right side
    21,531.24x = 355,788,708.28
  5. Step 5: Solve for x
    x = 355,788,708.28/21,531.24
  6. Step 6: Final answer
    x = 16,524.31

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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.