Home / 21,829.77-32,713.37-12,450.38

Finding the Fourth Proportional to 21,829.77, 32,713.37 and 12,450.38

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Solution

The fourth proportional to 21,829.77, 32,713.37 and 12,450.38 is: 18,657.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,829.77 : 32,713.37 = 12,450.38 : x
  2. Step 2: Convert to fraction form
    21,829.77/32,713.37 = 12,450.38/x
  3. Step 3: Cross multiply
    21,829.77x = 32,713.37 × 12,450.38
  4. Step 4: Simplify right side
    21,829.77x = 407,293,708.45
  5. Step 5: Solve for x
    x = 407,293,708.45/21,829.77
  6. Step 6: Final answer
    x = 18,657.72

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.