Home / 18,620.06-27,929.39-4,580.12

Finding the Fourth Proportional to 18,620.06, 27,929.39 and 4,580.12

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Solution

The fourth proportional to 18,620.06, 27,929.39 and 4,580.12 is: 6,870.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,620.06 : 27,929.39 = 4,580.12 : x
  2. Step 2: Convert to fraction form
    18,620.06/27,929.39 = 4,580.12/x
  3. Step 3: Cross multiply
    18,620.06x = 27,929.39 × 4,580.12
  4. Step 4: Simplify right side
    18,620.06x = 127,920,004.65
  5. Step 5: Solve for x
    x = 127,920,004.65/18,620.06
  6. Step 6: Final answer
    x = 6,870.01

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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.