Home / 20,013.80-29,934.30-16,903.40

Finding the Fourth Proportional to 20,013.80, 29,934.30 and 16,903.40

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Solution

The fourth proportional to 20,013.80, 29,934.30 and 16,903.40 is: 25,282.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,013.80 : 29,934.30 = 16,903.40 : x
  2. Step 2: Convert to fraction form
    20,013.80/29,934.30 = 16,903.40/x
  3. Step 3: Cross multiply
    20,013.80x = 29,934.30 × 16,903.40
  4. Step 4: Simplify right side
    20,013.80x = 505,991,446.62
  5. Step 5: Solve for x
    x = 505,991,446.62/20,013.80
  6. Step 6: Final answer
    x = 25,282.13

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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.