Home / 20,290.99-30,394.16-16,320.81

Finding the Fourth Proportional to 20,290.99, 30,394.16 and 16,320.81

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Solution

The fourth proportional to 20,290.99, 30,394.16 and 16,320.81 is: 24,447.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,290.99 : 30,394.16 = 16,320.81 : x
  2. Step 2: Convert to fraction form
    20,290.99/30,394.16 = 16,320.81/x
  3. Step 3: Cross multiply
    20,290.99x = 30,394.16 × 16,320.81
  4. Step 4: Simplify right side
    20,290.99x = 496,057,310.47
  5. Step 5: Solve for x
    x = 496,057,310.47/20,290.99
  6. Step 6: Final answer
    x = 24,447.17

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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.