Home / 28,935.22-39,929.94-16,188.58

Finding the Fourth Proportional to 28,935.22, 39,929.94 and 16,188.58

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Solution

The fourth proportional to 28,935.22, 39,929.94 and 16,188.58 is: 22,339.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,935.22 : 39,929.94 = 16,188.58 : x
  2. Step 2: Convert to fraction form
    28,935.22/39,929.94 = 16,188.58/x
  3. Step 3: Cross multiply
    28,935.22x = 39,929.94 × 16,188.58
  4. Step 4: Simplify right side
    28,935.22x = 646,409,028.09
  5. Step 5: Solve for x
    x = 646,409,028.09/28,935.22
  6. Step 6: Final answer
    x = 22,339.87

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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.