Home / 20,934.68-28,860.99-16,700.11

Finding the Fourth Proportional to 20,934.68, 28,860.99 and 16,700.11

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Solution

The fourth proportional to 20,934.68, 28,860.99 and 16,700.11 is: 23,023.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,934.68 : 28,860.99 = 16,700.11 : x
  2. Step 2: Convert to fraction form
    20,934.68/28,860.99 = 16,700.11/x
  3. Step 3: Cross multiply
    20,934.68x = 28,860.99 × 16,700.11
  4. Step 4: Simplify right side
    20,934.68x = 481,981,563.40
  5. Step 5: Solve for x
    x = 481,981,563.40/20,934.68
  6. Step 6: Final answer
    x = 23,023.12

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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.