Home / 20,716.17-28,599.13-16,169.08

Finding the Fourth Proportional to 20,716.17, 28,599.13 and 16,169.08

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Solution

The fourth proportional to 20,716.17, 28,599.13 and 16,169.08 is: 22,321.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,716.17 : 28,599.13 = 16,169.08 : x
  2. Step 2: Convert to fraction form
    20,716.17/28,599.13 = 16,169.08/x
  3. Step 3: Cross multiply
    20,716.17x = 28,599.13 × 16,169.08
  4. Step 4: Simplify right side
    20,716.17x = 462,421,508.98
  5. Step 5: Solve for x
    x = 462,421,508.98/20,716.17
  6. Step 6: Final answer
    x = 22,321.77

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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.