Home / 16,675.91-23,021.12-12,890.52

Finding the Fourth Proportional to 16,675.91, 23,021.12 and 12,890.52

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Solution

The fourth proportional to 16,675.91, 23,021.12 and 12,890.52 is: 17,795.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,675.91 : 23,021.12 = 12,890.52 : x
  2. Step 2: Convert to fraction form
    16,675.91/23,021.12 = 12,890.52/x
  3. Step 3: Cross multiply
    16,675.91x = 23,021.12 × 12,890.52
  4. Step 4: Simplify right side
    16,675.91x = 296,754,143.33
  5. Step 5: Solve for x
    x = 296,754,143.33/16,675.91
  6. Step 6: Final answer
    x = 17,795.38

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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.