Home / 20,185.02-30,279.76-5,394.02

Finding the Fourth Proportional to 20,185.02, 30,279.76 and 5,394.02

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Solution

The fourth proportional to 20,185.02, 30,279.76 and 5,394.02 is: 8,091.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,185.02 : 30,279.76 = 5,394.02 : x
  2. Step 2: Convert to fraction form
    20,185.02/30,279.76 = 5,394.02/x
  3. Step 3: Cross multiply
    20,185.02x = 30,279.76 × 5,394.02
  4. Step 4: Simplify right side
    20,185.02x = 163,329,631.04
  5. Step 5: Solve for x
    x = 163,329,631.04/20,185.02
  6. Step 6: Final answer
    x = 8,091.63

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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.