Home / 21,790.08-30,087.18-16,746.30

Finding the Fourth Proportional to 21,790.08, 30,087.18 and 16,746.30

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Solution

The fourth proportional to 21,790.08, 30,087.18 and 16,746.30 is: 23,122.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,790.08 : 30,087.18 = 16,746.30 : x
  2. Step 2: Convert to fraction form
    21,790.08/30,087.18 = 16,746.30/x
  3. Step 3: Cross multiply
    21,790.08x = 30,087.18 × 16,746.30
  4. Step 4: Simplify right side
    21,790.08x = 503,848,942.43
  5. Step 5: Solve for x
    x = 503,848,942.43/21,790.08
  6. Step 6: Final answer
    x = 23,122.86

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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.