Home / 20,325.19-30,486.87-8,474.08

Finding the Fourth Proportional to 20,325.19, 30,486.87 and 8,474.08

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Solution

The fourth proportional to 20,325.19, 30,486.87 and 8,474.08 is: 12,710.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,325.19 : 30,486.87 = 8,474.08 : x
  2. Step 2: Convert to fraction form
    20,325.19/30,486.87 = 8,474.08/x
  3. Step 3: Cross multiply
    20,325.19x = 30,486.87 × 8,474.08
  4. Step 4: Simplify right side
    20,325.19x = 258,348,175.33
  5. Step 5: Solve for x
    x = 258,348,175.33/20,325.19
  6. Step 6: Final answer
    x = 12,710.74

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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.