Home / 36,678.80-55,018.61-11,718.65

Finding the Fourth Proportional to 36,678.80, 55,018.61 and 11,718.65

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Solution

The fourth proportional to 36,678.80, 55,018.61 and 11,718.65 is: 17,578.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,678.80 : 55,018.61 = 11,718.65 : x
  2. Step 2: Convert to fraction form
    36,678.80/55,018.61 = 11,718.65/x
  3. Step 3: Cross multiply
    36,678.80x = 55,018.61 × 11,718.65
  4. Step 4: Simplify right side
    36,678.80x = 644,743,834.08
  5. Step 5: Solve for x
    x = 644,743,834.08/36,678.80
  6. Step 6: Final answer
    x = 17,578.11

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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.