Home / 27,121.80-37,428.84-16,511.16

Finding the Fourth Proportional to 27,121.80, 37,428.84 and 16,511.16

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Solution

The fourth proportional to 27,121.80, 37,428.84 and 16,511.16 is: 22,785.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,121.80 : 37,428.84 = 16,511.16 : x
  2. Step 2: Convert to fraction form
    27,121.80/37,428.84 = 16,511.16/x
  3. Step 3: Cross multiply
    27,121.80x = 37,428.84 × 16,511.16
  4. Step 4: Simplify right side
    27,121.80x = 617,993,565.85
  5. Step 5: Solve for x
    x = 617,993,565.85/27,121.80
  6. Step 6: Final answer
    x = 22,785.86

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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.