Home / 20,145.10-30,232.05-8,466.70

Finding the Fourth Proportional to 20,145.10, 30,232.05 and 8,466.70

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Solution

The fourth proportional to 20,145.10, 30,232.05 and 8,466.70 is: 12,706.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,145.10 : 30,232.05 = 8,466.70 : x
  2. Step 2: Convert to fraction form
    20,145.10/30,232.05 = 8,466.70/x
  3. Step 3: Cross multiply
    20,145.10x = 30,232.05 × 8,466.70
  4. Step 4: Simplify right side
    20,145.10x = 255,965,697.74
  5. Step 5: Solve for x
    x = 255,965,697.74/20,145.10
  6. Step 6: Final answer
    x = 12,706.10

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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.