Home / 20,185.26-30,279.52-5,394.06

Finding the Fourth Proportional to 20,185.26, 30,279.52 and 5,394.06

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Solution

The fourth proportional to 20,185.26, 30,279.52 and 5,394.06 is: 8,091.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,185.26 : 30,279.52 = 5,394.06 : x
  2. Step 2: Convert to fraction form
    20,185.26/30,279.52 = 5,394.06/x
  3. Step 3: Cross multiply
    20,185.26x = 30,279.52 × 5,394.06
  4. Step 4: Simplify right side
    20,185.26x = 163,329,547.65
  5. Step 5: Solve for x
    x = 163,329,547.65/20,185.26
  6. Step 6: Final answer
    x = 8,091.53

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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.