Home / 28,622.13-39,504.21-16,687.38

Finding the Fourth Proportional to 28,622.13, 39,504.21 and 16,687.38

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Solution

The fourth proportional to 28,622.13, 39,504.21 and 16,687.38 is: 23,031.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,622.13 : 39,504.21 = 16,687.38 : x
  2. Step 2: Convert to fraction form
    28,622.13/39,504.21 = 16,687.38/x
  3. Step 3: Cross multiply
    28,622.13x = 39,504.21 × 16,687.38
  4. Step 4: Simplify right side
    28,622.13x = 659,221,763.87
  5. Step 5: Solve for x
    x = 659,221,763.87/28,622.13
  6. Step 6: Final answer
    x = 23,031.89

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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.